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Machining Parts Manufacturer

  • Samples in 1 day, with $50-200 sample fee 100% refunded on bulk orders (100+ units)
  • Factory Pricing – 30% material savings, 55% tariff cuts, zero platform fees
  • Risk-Free Guarantee – 100% refund or free rework in 48h, including shipping
  • Free DFM Optimization – 3 design iterations + manufacturability videos, $0 upfront
  • 150+ Material Solutions & 35+ Surface Finishing Options In-House – From Medical-Grade Anodization to MIL-SPEC Coatings
  • AI +10 engineer reviews catch manufacturability issues upfront, slashing part costs and risks by 45%+
  • 1,500+ CNC Machining solutions – high-precision custom machining for any industry
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Engineers-Led CNC Machining | Factory-Direct, No Middlemen

Machining Parts Manufacturer

  • Samples in 1 day, with $50-200 sample fee 100% refunded on bulk orders (100+ units)
  • Factory Pricing – 30% material savings, 55% tariff cuts, zero platform fees
  • Risk-Free Guarantee – 100% refund or free rework in 48h, including shipping
  • 150+ Material Solutions & 35+ Surface Finishing Options In-House – From Medical-Grade Anodization to MIL-SPEC Coatings
  • AI +10 engineer reviews DFM catch manufacturability issues upfront, slashing part costs and risks by 45%+
  • 10,000+ product cases with third-party lab certifications (ISO 13485, IATF 16949) ensure aerospace/medical-grade accuracy.
  • 1,500+ CNC Machining solutions – high-precision custom machining for any industry
  • ITAR Registered
  • ISO 9001 : 2015
  • ISO 14001
  • IATF 16949
  • ISO 13485

Need parts fast? Get a quote and prototype in 7-10 days

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We provide collaborative OEM and ODM support + with 20 years of experience helping brands grow + empowering you to build a strong market presence.

48+ surface finishes for custom aesthetics

We provide 48+ distinct surface finishing processes + from functional coatings to decorative finishes + allowing you to perfectly match your product's design and performance requirements.

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CNC Machining Services

Get a quote in 30 minutes with a detailed DFM analysis report, using 100+ materials and 60+ finishes, all backed by ISO-certified quality

5 Axis CNC Machining Services

Precision 5 axis CNC machining with ±0.002mm tolerance, ideal for complex geometries and tight tolerances in aerospace, automotive, and medical industries

5 Axis CNC Machining
  • ±0.01mm Precision 5-Axis CNC Machining: Tightest tolerances for complex parts±0.005mm Precision 5-Axis CNC Machining: Tightest tolerances for complex parts
  • 3-Day 5-Axis CNC Machining Samples: Fastest turnaround for rapid prototyping
  • 150+ Materials 5-Axis CNC: Metals, plastics, and more for any application
  • One-Stop 5-Axis Machining & Finishing: 35 processes, 55 treatments, simplified sourcing
  • Cost effective, 5 Axis Machining MOQ 1pcs: With Free samples + DFM + CPK data service, and enjoy 5%-8% price lower
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CNC Milling Services

Get an instant online quote in 30 minutes for CNC milling, with 50-10,000 parts, 100+ materials, and 60+ finishes

3 Axis CNC Machining
  • Expert CNC Milling (80+ Industries): Result: Milled parts, built for your application
  • In-House CNC Milling + 55 Finishes: Result: Save 15%+, faster turnaround, one source
  • 99% On-Time Global Milling: Result: Reliable delivery, worldwide
  • Custom-Engineered Milling Tooling: Result: 20%+ accuracy, less waste
  • Guaranteed Milling Cost Savings: Result: 5-10% lower cost, quality assured
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CNC Turning Service

Get high-precision CNC turning services with tight tolerances (down to ±0.0008"), using 85+ materials and advanced live tooling for complex cylindrical parts

CNC Turning Service
  • Optical Component Precision: ±0.005mm tolerances, critical for lens mounts and focusing mechanisms
  • High-End Anodizing:Type II, Type III, hard-anodizing, for durability and aesthetics
  • Custom Rigs & Accessories: Design and machining of specialized supports, cages, and adapters
  • Lightweighting Solutions:Aluminum, Magnesium, for comfortable handheld use
  • Rapid Prototyping & DFM:3-7 day turnaround, design for manufacturability, accelerating your product launch
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Your guide to machining, covering tolerances, materials, finishes, and applications

CNC Machining Services
Custom 3-Axis CNC Milling Services
Custom 3-Axis CNC Milling Services

                 Custom 3-Axis CNC Milling Services

✔ Fast & Precise – CNC-milled prototypes and production parts in 2-5 days.
✔ Material Options – Over 30+ plastics & metals, including Aluminum 6061/7075, Stainless Steel 304/316, Titanium, PEEK, Delrin, Nylon.
✔ Scalable Production – From 1 to 100,000+ parts with competitive pricing.
✔ Certifications – AS9100D, ISO 9001:2015, ISO 13485, IATF 16949:2016, ITAR Registered.
✔ Quality & Finishing – FAI reports, material certifications, plus anodizing & chromate plating.

High-precision machining for aerospace, automotive, medical, and industrial applications.

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                          4-Axis CNC Milling

✔ One-Setup Machining – Reduces errors, improves accuracy (±0.0005” / ±0.0127mm), and cuts costs.
✔ Faster Production – 30-50% shorter machining time, with parts delivered in 3-7 days.
✔ Handles Complex Geometries – Ideal for curved surfaces, angled cuts, and multi-sided parts.
✔ Scalable for Any Volume – From 1 to 100,000+ parts with competitive pricing.
✔ Works with 30+ Materials – Aluminum, Stainless Steel, Titanium, PEEK, Delrin, Nylon.
✔ Certified Quality & Finishing – AS9100D, ISO 9001, IATF 16949, plus FAI reports, anodizing, and plating.

🚀 Get a quote today for high-precision 4-axis CNC machining!

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5-Axis CNC Milling

                             5-Axis CNC Milling

✔ Unlimited Design Freedom – Machine complex curves, undercuts, and intricate geometries with no extra setups.
✔ Faster, More Efficient Machining – Reduce production time by up to 60% with simultaneous 5-axis movement.
✔ Superior Accuracy & Consistency – Achieve ±0.0002” (±0.005mm) precision, perfect for tight-tolerance aerospace, medical, and high-tech applications.
✔ Flawless Surface Finish – Continuous tool contact minimizes tool marks, reducing post-processing time and costs.
✔ Cost-Effective for Prototypes & Production – From 1 to 100,000+ parts, optimized pricing for any order size.
✔ Handles High-Performance Materials – Easily machines Aluminum, Stainless Steel, Titanium, Inconel, PEEK, Delrin, Nylon, and more.

🚀 Push the limits of CNC machining—Get a quote today!

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cnc turning

                       CNC Turning Service   

✔ Ultra-Fast Production – High-speed turning delivers parts in as fast as 2 days, reducing lead times.
✔ Perfect for High-Volume Runs – Automated processes ensure identical precision across 1 to 100,000+ parts.
✔ Seamless Integration with Milling – Combine turning & milling for complex hybrid parts without extra setups.
✔ Minimized Tool Wear = Lower Costs – Advanced tool paths extend tool life, reducing machining expenses.
✔ Flawless Finishes – Achieve ±0.0005” (±0.0127mm) accuracy with smooth surfaces, reducing post-processing.
✔ Works with 30+ Materials – Aluminum, Stainless Steel, Brass, Titanium, Plastics, and more.

🚀 Boost efficiency & precision—Get a quote today!

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                CNC Routing Services

✔ High-Speed Cutting – 50% faster production, parts ready in 2-5 days.
✔ Large Format Capability – Handles sheets up to 4’ x 8’ (1200mm x 2400mm) with ±0.005” (±0.127mm) accuracy.
✔ Lower Costs, Less Waste – Optimized nesting saves up to 30% on material costs.
✔ Versatile Materials – Cuts plastics, composites, wood, acrylic, aluminum, and soft metals.
✔ Scalable for Any Order Size – Cost-effective from one-off prototypes to 10,000+ parts.
✔ Clean, Smooth Finishes – No post-processing needed, reducing labor costs.

🚀 Get precision CNC routing with fast turnaround—Request a quote today!

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CNC Machining Finishes

Standard (As-Milled)
      As-Machined Finish – Fastest Turnaround Option

The quickest surface finish option, leaving parts with visible tool marks and possible sharp edges or burrs, which can be removed upon request. The surface roughness is approximately 125 µin Ra, ensuring a standard CNC-machined finish.

✔ Fastest Production Time – No additional finishing required
✔ Standard Machined Surface – Visible tool marks, deburring available
✔ Cost-Effective – Ideal for functional prototypes and internal components

Perfect for rapid prototyping, mechanical parts, and cost-sensitive applications.

      Matte Finish – Smooth & Refined Surface

This finish provides a uniform, non-reflective matte appearance with a surface roughness of Ra 32-64 µin.

✔ Smooth Surface Quality – No visible tool marks, Ra 32-64 µin
✔ Non-Reflective Matte Look – Reduces glare and enhances aesthetics
✔ Precision Finish – Ideal for consumer products, aerospace, and industrial parts

Perfect for applications requiring a clean, professional, and refined surface.

Tumbling – Deburring & Surface Smoothing

A batch-based process using vibrating media to remove sharp edges, burrs, and machine marks from exterior surfaces.

✔ Edge & Burr Removal – Smooths CNC parts for safer handling
✔ Surface Finish – Reduces roughness to Ra 32-125 µin
✔ Size Limitations – Parts over 8” (200mm) may require manual review
✔ Batch Efficiency – Ideal for high-volume production

Perfect for automotive, aerospace, and industrial components needing consistent deburring and surface refinement.

                Anodizing – Type I, II & III

✔ Type I (Chromic Acid, MIL-A-8625 Type I) – Thin, corrosion-resistant, best for aerospace & precision parts.
✔ Type IB – Thicker than Type I, offers better durability while maintaining low electrical resistance.
✔ Type II (Sulfuric Acid, MIL-A-8625 Type II) – Corrosion-resistant, available in multiple colors (clear, black, red, gold), widely used in aluminum components.
✔ Type IIB – Thinner version of Type II, maintains conductivity for electrical applications.
✔ Type III (Hardcoat, MIL-PRF-8625 Type III, Class 1/2) – Thick, wear-resistant, enhances corrosion protection & durability, ideal for high-performance applications.

Ideal for aerospace, automotive, electronics, and industrial applications requiring enhanced protection and performance.

   Titanium Anodizing Finishes (AMS-2488)

✔ Type 1 – Chemical film, enhances corrosion resistance (non-load-bearing applications).
✔ Type 2 (Tiodize, AMS-2488) – Fatigue strength & wear-resistant, dull matte finish (aerospace, medical).
✔ Type 3 – Decorative & corrosion-resistant, adds color variation (identification marking).
✔ Type 4 – High-voltage electrical resistance, used in electronics & aerospace shielding.

Ideal for aerospace, medical, and industrial titanium components requiring enhanced durability and performance.

Self-Lubricating Hard Coat Anodizing (AMS-2482 Type 1)

A Type III hard coat anodizing process enhanced with PTFE embedding, creating a self-lubricating, dry-contact surface with superior wear resistance. This finish is ideal for aluminum alloys and titanium, significantly extending product service life while maintaining hard coat protection.

✔ Durability & Low Friction – Reduces wear and enhances performance
✔ Self-Lubricating – Ideal for dry-contact applications
✔ AMS-2482 Type 1 Compliant – Hard coat anodizing with Teflon (Non-Dyed)

Perfect for aerospace, automotive, and industrial applications requiring high-performance, low-maintenance finishes.

Chem Film Coating (MIL-DTL-5541, TYPE I/II)

A thin protective coating that enhances corrosion resistance while maintaining good electrical conductivity. Ideal as a paint adhesion base, it leaves a yellow/gold finish and adds minimal thickness (0.00001”–0.00004”).

✔ Corrosion Protection – Extends material lifespan
✔ Good Conductivity – Suitable for electrical applications
✔ MIL-DTL-5541, TYPE I/II Compliant – Meets industry standards

Perfect for aerospace, electronics, and military applications requiring lightweight, conductive protection.

Passivation for Corrosion-Resistant Steels (ASTM A967, AMS-QQ-P-35, MIL-STD-171, ASTM A380, AMS 2700)

A precision chemical treatment that enhances corrosion resistance for 200 & 300 series stainless steels and precipitation-hardened alloys. This process removes surface contaminants without adding measurable thickness (~0.0000001”), ensuring optimal material integrity.

✔ Enhanced Corrosion Protection – Extends stainless steel lifespan
✔ Zero Dimensional Impact – Maintains precision tolerances
✔ Meets Industry Standards – ASTM A967, MIL-STD-171, AMS 2700 compliance

Ideal for aerospace, medical, and industrial applications requiring high-purity, corrosion-resistant components.

Powder Coating – Durable, Corrosion-Resistant Finish

In the powder coating process, powdered paint is applied to a part and baked in an oven, forming a strong, wear-resistant layer that offers superior corrosion protection compared to traditional painting methods.

✔ Durability & Protection – Enhanced wear and corrosion resistance
✔ Wide Color Options – Customizable to meet aesthetic needs
✔ Long-Lasting Finish – Ideal for high-performance applications

Explore our powder coating finishes gallery for color samples and design inspiration.

Electropolishing – Corrosion Resistance & Bright Finish

An electrochemical process that cleans steel parts, enhancing corrosion resistance while creating a brighter, smoother finish. This process removes 0.0001”–0.0025” of material, improving both appearance and durability.

✔ Enhanced Corrosion Resistance – Extends part longevity
✔ Smoother, Brighter Surface – Improves aesthetics and cleanliness
✔ ASTM B912-02 Compliant – Meets industry standards

Ideal for medical, aerospace, and industrial applications requiring precision finishing and corrosion protection.

Nickel Plating – Corrosion, Oxidation, and Wear Protection

A uniform nickel coating that provides enhanced corrosion, oxidation, and wear resistance on irregular surfaces. The process results in a brighter, smoother finish, starting at a thickness of 0.0001”.

✔ Enhanced Protection – Resists corrosion, oxidation, and wear
✔ Improved Aesthetics – Brighter, more polished finish
✔ MIL-C-26074 Compliant – Meets industry standards

Ideal for automotive, aerospace, and industrial applications requiring durable, high-performance finishes.

Silver Plating – High Solderability & Electrical Conductivity

Silver plating provides excellent solderability and electrical conductivity, though it may be prone to tarnishing over time. The plating thickness ranges from 0.00002” to 0.0003”.

✔ Superior Conductivity – Ideal for electrical and soldering applications
✔ High-Performance – Ensures reliable connections
✔ AMS QQ-S-365D Compliant – Meets industry standards

Perfect for electronics, telecommunications, and high-performance applications requiring superior electrical properties.

Gold Plating – Corrosion Resistance & Superior Solderability

Gold plating offers exceptional corrosion and tarnish resistance, along with excellent solderability for high-performance applications. Thickness ranges from 0.00002” to 0.00005”, ensuring durability and conductivity.

✔ Corrosion & Tarnish Resistant – Long-lasting protection
✔ High Conductivity & Solderability – Ideal for precision electronics
✔ MIL-G-45204 & ASTM B488 Compliant – Meets industry standards

Perfect for electronics, aerospace, and telecommunications applications requiring high-reliability plating.

Brushed Finish – Textured, Uniform, and Aesthetic Surface

Brushing creates a uniform, directional grain on metal surfaces, enhancing both appearance and texture. This finish reduces surface imperfections while providing a matte, satin-like look.

✔ Enhanced Aesthetics – Sleek, modern, and visually appealing
✔ Reduces Surface Imperfections – Smooth and uniform grain pattern
✔ Improved Grip & Wear Resistance – Ideal for high-touch surfaces

Perfect for automotive, consumer electronics, appliances, and architectural applications requiring a refined, non-reflective finish.

Laser Engraving – Permanent, High-Precision Marking

Laser engraving uses a high-powered laser to create precise, permanent markings on a variety of materials, ensuring durability and readability without affecting structural integrity.

✔ High Precision & Detail – Sharp, clear markings for logos, serial numbers, and text
✔ Permanent & Wear-Resistant – Resists fading, scratching, and corrosion
✔ Versatile Material Compatibility – Works on metals, plastics, ceramics, and more

Perfect for industrial parts, medical devices, electronics, and branding applications requiring long-lasting, high-contrast identification.

Zinc Plating – Corrosion, Oxidation & Wear Protection

Zinc plating applies a uniform protective coating, enhancing corrosion resistance, oxidation prevention, and wear durability, even on irregular surfaces.

✔ Superior Corrosion & Oxidation Resistance – Extends component lifespan
✔ Durable Protective Coating – Reduces wear and surface degradation
✔ ASTM B633-15 Compliant – Meets industry standards

Ideal for automotive, aerospace, and industrial applications requiring reliable surface protection

CNC Machining Materials
CNC Machining Aluminum Alloys
           Aluminum Alloys We Offer

✔ 6061-T6 – Strong, corrosion-resistant (structural, aerospace, automotive).
✔ 5052-H32 – High corrosion resistance, fatigue strength (marine, transportation).
✔ 2024-T3 – High strength, fatigue resistance (aerospace, military).
✔ 6063-T5/T6 – Smooth finish, good strength (architectural, extrusion).
✔ 7050-T7451 – High strength, stress-corrosion resistant (aerospace, high-performance).
✔ 7075-T6 – Superior strength-to-weight (aerospace, defense, sporting goods).
✔ MIC-6 – Precision-cast, highly stable (tooling, fixtures).

Ideal for aerospace, automotive, marine, and industrial applications.

         CNC Machining Copper Alloys

✔ Copper 101 – 99.99% pure, best for electronics & high-frequency applications.
✔ Copper C110 – High conductivity (IACS 100%), used in electrical components & heat exchangers.
✔ Copper C145 – Tellurium copper, improved machinability, ideal for connectors & precision parts.
✔ Copper C182 – Chromium copper, high strength & wear resistance, used in welding electrodes.
✔ Copper C17510 – Beryllium copper, strong & conductive, perfect for spring contacts & aerospace.
✔ Copper C17500 – Hard, wear-resistant, suited for industrial tooling & high-stress parts.

Ideal for electrical, thermal, aerospace, and industrial applications.

CNC Machining Bronze Alloys

✔ C932 (SAE 660) – Wear-resistant, machinable, ideal for bushings & bearings.
✔ C954 (Aluminum Bronze) – Strong, corrosion-resistant, used in marine & aerospace.
✔ C955 (Nickel Aluminum Bronze) – High strength, anti-galling, great for valves & pumps.
✔ C907 (Tin Bronze) – Ductile, shock-resistant, suited for gears & bearings.
✔ C903 (Naval Bronze) – Superior seawater resistance, perfect for marine use.

Ideal for marine, aerospace, heavy machinery, and industrial applications.

            CNC Machining Brass Alloys

✔ C260 (Cartridge Brass) – 70% copper, 30% zinc, high ductility & corrosion resistance, used in electronics & automotive.
✔ C360 (Free-Cutting Brass) – 61.5% copper, 35.5% zinc, 3% lead, best machinability, ideal for fittings, valves & precision parts.
✔ C464 (Naval Brass) – 60% copper, 39% zinc, 1% tin, superior seawater corrosion resistance, perfect for marine & industrial use.
✔ C385 (Architectural Brass) – 58% copper, 39% zinc, 3% lead, strong & machinable, great for decorative & structural applications.
✔ C230 (Red Brass) – 85% copper, 15% zinc, excellent workability & corrosion resistance, used in plumbing & electrical.

Ideal for precision machining in marine, aerospace, industrial, plumbing, and decorative applications.

     CNC Machining Stainless Steel Alloys

✔ Nitronic 60 (1.4534) – Wear & galling-resistant (bearings, aerospace).
✔ 15-5 (1.4545) – High strength, corrosion-resistant (aerospace, medical).
✔ 17-4 (1.4542) – Strong, heat-treated, excellent toughness (marine, aerospace).
✔ 18-8 (X5CrNi18-10) – General-purpose, corrosion-resistant (food, industrial).
✔ 303 (1.4305) – Best machinability in stainless steel (fittings, fasteners).
✔ 304 (1.4301) – Excellent corrosion resistance, widely used (food, medical, industrial).
✔ 304L (1.4307) – Low-carbon 304, better weldability (pharmaceutical, chemical).
✔ 316/316L (1.4401 / 1.4404) – Superior corrosion resistance (marine, medical).
✔ 416 (1.4005) – Easy to machine, hardened for wear resistance (automotive, firearms).
✔ 410 (1.4006) – Hardenable, moderate corrosion resistance (cutlery, valves).
✔ 420 (1.4021) – Wear-resistant, used in cutlery (surgical tools, knives).
✔ 440C (1.4125) – Highest hardness, wear-resistant (bearings, high-end tools).

Ideal for aerospace, medical, marine, automotive, and industrial applications.

          CNC Machining Steel Alloys

✔ 1018 (1.0402) – Low-carbon, weldable, moderate strength (shafts, fasteners).
✔ 1215 (1.0715) – Free-machining, precise, not weldable (gears, bushings).
✔ 4130 (1.7218) – Strong, tough, weldable (aerospace, automotive).
✔ 4140 (1.7225) – High-strength, wear-resistant (tooling, industrial).
✔ 4140PH (1.7225+QT) – Pre-hardened, no heat treatment needed (molds, structural).
✔ 4340 (1.6582) – Ultra-high strength, tough (aerospace, power transmission).
✔ A2 (1.2363) – Air-hardened, wear-resistant (dies, cutting tools).
✔ O1 (1.2510) – Oil-hardened, tough, sharp edges (knives, punches).

Ideal for aerospace, automotive, tooling, and industrial applications.

      CNC Machining Titanium Alloys

✔ Grade 2 (3.7035 / Ti-CP2) – Commercially pure, excellent corrosion resistance, lightweight, weldable (aerospace, medical, marine).
✔ Grade 5 (3.7165 / Ti-6Al-4V) – High strength, heat-resistant, most widely used titanium alloy (aerospace, medical implants, automotive).
✔ Grade 9 (3.7195 / Ti-3Al-2.5V) – Lighter than Grade 5, stronger than Grade 2, ideal for tubing, sports equipment, aerospace.
✔ Grade 23 (3.7164 / Ti-6Al-4V ELI) – Lower oxygen variant of Grade 5, superior biocompatibility (medical implants, surgical tools).

Ideal for aerospace, medical, marine, and high-performance applications.

                     CNC Machining Zinc Alloys

✔ Zamak 2 (ZnAl4Cu2 / EN 1774 ZP0430) – Highest strength among Zamak alloys, excellent wear resistance (gears, industrial parts).
✔ Zamak 3 (ZnAl4 / EN 1774 ZP0410) – Most common zinc alloy, good balance of strength and ductility (die casting, consumer goods).
✔ Zamak 5 (ZnAl4Cu1 / EN 1774 ZP0410) – Stronger than Zamak 3, slightly less ductile, great for structural components.
✔ Zamak 7 (ZnAl4 / EN 1774 ZP0400) – Ultra-high purity version of Zamak 3, improved fluidity and castability (precision die casting).
✔ ZA-8 (ZnAl8 / EN 1774 ZP0810) – Higher aluminum content, superior strength and hardness (thin-walled castings, industrial parts).
✔ ZA-12 (ZnAl12 / EN 1774 ZP1200) – Excellent strength, impact resistance, used for heavy-duty applications.
✔ ZA-27 (ZnAl27 / EN 1774 ZP2700) – Highest aluminum content, strongest and hardest zinc alloy, ideal for high-load applications.Ideal for die casting,

                       Custom Material Machining

At LK Tools, we provide precision CNC machining for a wide range of custom materials, sourced from 10,000+ suppliers to meet your exact requirements.

✔ Aluminum – 5083 (3.3547), 7075-T6 (3.4365), MIC-6
✔ Stainless Steel – 304L (1.4307), 316L (1.4404), 17-4 PH (1.4542)
✔ Titanium – Grade 2 (3.7035), Grade 5 (3.7165), Grade 9 (3.7195)
✔ Brass & Bronze – C360 (2.0401), C932 (SAE 660), C955 (2.0975)
✔ Tool Steel – A2 (1.2363), O1 (1.2510), D2 (1.2379), H13 (1.2344)
✔ Copper – C110 (2.0060), C145 (2.1545), C182 (2.1293)
✔ Zinc Alloys – Zamak 3 (ZP0410), ZA-12 (ZP1200), ZA-27 (ZP2720)

If your required material is not listed, select “Custom” in the LK Tools material drop-down and submit your quote. Our expert machinists will ensure precision, quality, and fast turnaround.

           CNC Machining ABS Plastic

✔ ABS (ISO 2580-1) – Strong, impact-resistant (consumer products, automotive, electronics).
✔ ABS Black – UV-resistant, durable (outdoor, industrial applications).
✔ ABS Flame Retardant (UL94 V-0) – Fire-resistant (electrical, aerospace components).
✔ ABS+PC (ISO 7391-1) – Heat-resistant, high-strength (enclosures, automotive parts).

Perfect for durable, high-performance application

                   CNC Machining Acrylic (PMMA)

✔ Acrylic (PMMA, ISO 7823-1) – Glass-like clarity, impact-resistant, ideal for displays, signage, and lighting.
✔ Acrylic Clear (ISO 7823-1) – High transparency (up to 92% light transmission), great for optical and decorative applications.
✔ Acrylic UV-Resistant (ISO 7823-2) – Enhanced weather resistance, perfect for outdoor and automotive parts.
✔ Acrylic Impact-Modified (ISO 7823-1) – Improved toughness, used in safety shields and protective covers.

Ideal for optical, outdoor, and high-durability applications.

 CNC Machining Delrin (Acetal) Plastic

✔ Acetal (POM, ISO 9988-1) – Low friction, high wear resistance, ideal for gears, bearings, and precision parts.
✔ Delrin 100 (POM-H, ISO 9988-1) – High stiffness & strength, used in structural and load-bearing components.
✔ Delrin 150 (POM-H, ISO 9988-1) – Improved impact resistance, great for mechanical and industrial applications.
✔ Acetal Copolymer (POM-C, ISO 9988-2) – Better chemical resistance & lower moisture absorption, suited for food-grade and medical use.

Perfect for automotive, industrial, and precision engineering applications

CNC Machining Garolite (G-Grade Laminates)

✔ Garolite G10 (FR4, IEC 60893-3-2) – Flame-resistant, high strength, used in electronics & aerospace.
✔ Garolite G10 (Non-FR, IEC 60893-3-2) – Non-flame retardant, high dielectric strength, ideal for insulation & mechanical applications.
✔ Garolite G11 (FR5, IEC 60893-3-2) – Higher heat resistance than G10, perfect for high-temperature electrical components.
✔ Garolite G7 (IEC 60893-3-4) – Silicone-based, heat-resistant, used in thermal & electrical insulation.
✔ Garolite G9 (IEC 60893-3-5) – Melamine-based, arc-resistant, suited for switchgear & transformers.
✔ Garolite G5 (IEC 60893-3-5) – High mechanical strength, excellent electrical insulation, great for precision components.

Ideal for aerospace, electrical, and industrial applications requiring strength, insulation, and durability.

CNC Machining HDPE (High-Density Polyethylene)

✔ HDPE Natural (PE300, ISO 15527) – Moisture & chemical-resistant, ideal for food containers, tanks, and seals.
✔ HDPE Black (PE500, ISO 15527) – UV-resistant, durable, perfect for outdoor and marine applications.
✔ HDPE UV-Stabilized (PE1000, ISO 15527) – Superior weather resistance, used in construction, piping, and signage.
✔ HDPE Antistatic (ISO 15527) – Prevents static buildup, suited for electronics and conveyor components.

Ideal for outdoor, marine, industrial, and food-grade applications.

CNC Machining Nylon (PA – Polyamide)

✔ Nylon 6/6 (PA66, ISO 16396-1) – High strength, rigidity, heat-resistant, ideal for gears, bushings, and mechanical parts.
✔ Nylon 6 (PA6, ISO 16396-1) – Better impact resistance, slightly lower strength than PA66, used in automotive and industrial applications.
✔ Glass-Filled Nylon 6/6 (PA66-GF30, ISO 16396-2) – 30% glass fiber reinforced, higher stiffness & wear resistance, perfect for structural components.
✔ Oil-Filled Nylon (PAO, ISO 16396-1) – Self-lubricating, reduces friction & wear, great for bearings and sliding applications.
✔ MD Nylon (Molybdenum Disulfide Filled, ISO 16396-1) – Enhanced wear resistance & lower friction, used for high-load bushings & gears.

Ideal for industrial, automotive, aerospace, and structural applications requiring durability and chemical resistance.

   CNC Machining Polycarbonate (PC)

✔ PC (ISO 7391-1) – High impact strength, transparent, durable, ideal for automotive, aerospace, and protective components.
✔ PC Black (ISO 7391-1) – UV-resistant, strong, used for outdoor and industrial applications.
✔ PC Flame Retardant (UL94 V-0, ISO 7391-1) – Enhanced fire resistance, perfect for electrical and aerospace components.
✔ PC-ABS (ISO 7391-1 / ISO 2580-1) – Stronger, heat-resistant blend, great for enclosures and high-stress applications.
✔ Glass-Filled PC (PC-GF20, ISO 7391-1) – 20% glass fiber reinforced, superior stiffness & wear resistance, used in structural and mechanical applications.

Ideal for aerospace, automotive, industrial, and high-performance applications.

CNC Machining PEEK (Polyether Ether Ketone)

✔ PEEK (ISO 23936-1) – High tensile strength, heat-resistant (up to 250°C), ideal for aerospace, automotive, and medical applications.
✔ PEEK USP Class VI (TECAPEEK, ISO 10993-1) – Biocompatible, FDA-approved, perfect for medical implants & food processing.
✔ PEEK GF30 (ISO 23936-1) – 30% glass fiber reinforced, improved stiffness & wear resistance, used in structural & mechanical components.
✔ Carbon-Filled PEEK (PEEK CF30, ISO 23936-1) – 30% carbon fiber, superior strength & low friction, ideal for high-load bearings & aerospace parts.
✔ PEEK ESD (ISO 23936-1) – Electrically conductive, prevents static buildup, great for electronics & semiconductor manufacturing.

Ideal for high-temperature, high-stress, chemical-resistant applications in aerospace, medical, and industrial sectors.

               CNC Machining Polypropylene (PP)

✔ PP Homopolymer (PP-H, ISO 1873-1) – High strength, rigid, lightweight, ideal for industrial, chemical tanks, and piping.
✔ PP Copolymer (PP-C, ISO 1873-1) – Tougher, impact-resistant, used in automotive, medical, and food-grade applications.
✔ PP Glass-Filled (PP-GF30, ISO 1873-1) – 30% glass fiber reinforced, enhanced stiffness & heat resistance, perfect for structural and mechanical components.
✔ PP Flame Retardant (PP-FR, UL94 V-0, ISO 1873-1) – Fire-resistant, durable, suited for electrical enclosures and aerospace applications.
✔ PP UV-Stabilized (PP-UV, ISO 1873-1) – Improved weather resistance, great for outdoor and marine use.
✔ PP Conductive (PP-CN, ISO 1873-1) – Electrically conductive, prevents static buildup, used in electronics and semiconductor industries.
✔ PP High-Heat (PP-HH, ISO 1873-1) – Enhanced thermal resistance, suitable for high-temperature industrial parts.

Ideal for chemical processing, electrical, automotive, and industrial applications requiring durability and resistance.

          CNC Machining PTFE (Teflon, ISO 13000-1)

✔ PTFE Virgin (ISO 13000-1) – Pure PTFE, excellent chemical resistance & dielectric properties, ideal for seals, gaskets, and electrical insulation.
✔ PTFE Glass-Filled (PTFE-GF25, ISO 13000-1) – 25% glass fiber, enhanced wear & creep resistance, perfect for bearings and valve seats.
✔ PTFE Carbon-Filled (PTFE-CF25, ISO 13000-1) – 25% carbon, improved strength & thermal conductivity, used in high-load applications.
✔ PTFE Bronze-Filled (PTFE-BF40, ISO 13000-1) – 40% bronze, excellent wear resistance & dimensional stability, suited for hydraulic and mechanical components.
✔ PTFE Anti-Static (PTFE-AS, ISO 13000-1) – Conductive, prevents static buildup, great for electronics and semiconductor applications.

Ideal for aerospace, chemical processing, electrical, and industrial applications requiring extreme durability and resistance

CNC Machining UHMW PE (Ultra-High Molecular Weight Polyethylene, ISO 15527)

✔ UHMW PE Natural (PE1000, ISO 15527) – High wear resistance, low friction, impact-resistant, ideal for conveyor systems & industrial components.
✔ UHMW PE Black (PE1000-B, ISO 15527) – UV-resistant, durable, perfect for outdoor and marine applications.
✔ UHMW PE Anti-Static (PE1000-AS, ISO 15527) – Prevents static buildup, used in electronics & material handling.
✔ UHMW PE Glass-Filled (PE1000-GF, ISO 15527) – Enhanced stiffness & wear resistance, great for high-load applications.
✔ UHMW PE Reprocessed (PE1000-R, ISO 15527) – Cost-effective, sustainable option, suited for general-purpose wear parts.

Ideal for industrial, automotive, food processing, and high-impact applications requiring durability and low friction.

CNC Machining PVC (Polyvinyl Chloride, ISO 11896-1)

✔ PVC Type 1 (PVC-U, ISO 11896-1) – Rigid, high chemical resistance, ideal for pipes, tanks, and industrial applications.
✔ PVC Type 2 (PVC-M, ISO 11896-1) – Modified for improved impact resistance, used in construction and mechanical components.
✔ PVC-C (Chlorinated PVC, ISO 11896-1) – Higher temperature resistance, perfect for hot water and chemical processing.
✔ PVC Transparent (ISO 11896-1) – Clear, lightweight, weather-resistant, great for windows and protective enclosures.
✔ PVC Anti-Static (ISO 11896-1) – Prevents static buildup, used in electronics and cleanroom environments.

Ideal for chemical processing, electrical insulation, construction, and industrial applications.

CNC Machining ULTEM (Polyetherimide, PEI, ISO 24025-1)

✔ ULTEM 1000 (PEI, ISO 24025-1) – Unfilled, high dielectric strength, heat-resistant (up to 340°F/170°C), ideal for electrical, aerospace, and medical components.
✔ ULTEM 2300 (PEI-GF30, ISO 24025-1) – 30% glass-filled, enhanced stiffness & dimensional stability, used in high-strength structural applications.
✔ ULTEM 2100 (PEI-10% GF, ISO 24025-1) – Moderate reinforcement, improved strength & rigidity, great for precision mechanical parts.
✔ ULTEM 2200 (PEI-20% GF, ISO 24025-1) – Balanced strength & impact resistance, suited for automotive and industrial components.
✔ ULTEM 5000 (ISO 24025-1) – High-temperature variant, superior thermal stability, perfect for extreme environments.

Ideal for aerospace, medical, automotive, and electrical insulation applications requiring high heat resistance and chemical durability

CNC Machining Tolerances
Maximum Part Size

 CNC Machining Capabilities & Tolerances

✔ Milling Capacity – Up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm).
✔ Lathe Capacity – Up to 62” (1,575 mm) length and 32” (813 mm) diameter.
✔ Standard Tolerances – ±0.005” (±0.127 mm) for general machining.
✔ Tight Tolerances – Up to ±0.0005” (±0.0127 mm) for high-precision applications.
✔ Surface Roughness – As low as Ra 32 µin (0.8 µm), with finer finishes available on request.

Precision CNC machining for complex and high-accuracy parts

                   Precision Tolerances

✔ Tight Tolerances – Up to ±0.001” (±0.025 mm) for high-precision machining.
✔ Ultra-Precision – As tight as ±0.0005” (±0.0127 mm) for specialized applications.
✔ GD&T Compliance – Manufactured per ISO 1101 / DIN EN ISO 1101.
✔ Custom Tolerances – Machining and inspection per customer drawings & specifications.

LK Tools ensures precision manufacturing to meet the highest industry standards.

   Minimum Feature Size & Tolerances

✔ Standard Minimum Feature Size – 0.020” (0.50 mm) (varies by geometry & material).
✔ For Metals – 0.010” – 0.020” (0.25 – 0.50 mm), per ISO 2768-mK / DIN ISO 2768-mK.
✔ For Plastics & Composites – 0.015” – 0.030” (0.38 – 0.75 mm), per ISO 2768-c / DIN ISO 2768-c.
✔ Fine Machining – As low as 0.005” (0.127 mm) for high-precision components.
✔ Ultra-Precision Micro-Machining – Down to 0.002” (0.05 mm) for specialized applications.

Exact tolerances depend on material, machining process, and part complexity.

               Edge Condition & Tolerances

✔ Default Edge Break – All sharp edges are broken and deburred unless specified.
✔ Standard Edge Break – 0.005” – 0.015” (0.127 – 0.381 mm) chamfer or radius, per ISO 13715.
✔ Precision Edge Break – As small as 0.002” (0.050 mm) for tight-tolerance parts, requiring manual finishing.
✔ Unbroken Sharp Edges – Maintained upon request with ±0.001” (±0.025 mm) tolerance, per ISO 2768-fH.
✔ Deburring Tolerance – Burr height ≤ 0.003” (0.076 mm), per ISO 13715.
✔ Custom Edge Requirements – Defined per drawing specifications and GD&T callouts (ISO 1101).

Ensuring compliance with ISO standards and machining best practices for safe and precise edges

                                    Surface Finish

✔ Standard Finish – As-machined: 125 Ra µin (3.2 Ra µm) or better, per ISO 4287 / ISO 1302.
✔ Tighter Tolerance Finishes – Available upon request:

  • 63 Ra µin (1.6 Ra µm) for improved smoothness
  • 32 Ra µin (0.8 Ra µm) for semi-polished surfaces
  • 16 Ra µin (0.4 Ra µm) or better for precision applications
    ✔ Custom Finishes – Defined per ISO 4288 / DIN EN ISO 1302 specifications.

Additional finishing options can be specified when requesting a quote.

          Hardness Tolerance Standards

✔ Standard Hardness Measurement – Defined per ISO 6508 (Rockwell), ISO 6507 (Vickers), ISO 6506 (Brinell).
✔ Typical Hardness Ranges (Material-dependent):

  • Rockwell (HRC/HB): ±1.0 HRC / ±10 HB
  • Vickers (HV): ±15 HV
    ✔ Precision Hardness Control – Available upon request for critical applications, per ISO 14577.
    ✔ Custom Hardness Requirements – Defined per ISO specifications and project needs.

Hardness specifications should be confirmed when requesting a quote.

CNC Machining Design Guidelines
CNC Machining Design Guidelines

                      Internal Corner Fillets

✔ Recommended Fillet Size – Design internal corner fillets to be 0.020” – 0.050” (0.50 – 1.27 mm) greater than the standard drill radius.
✔ Drill Diameter to Depth Ratio – Follow a 1:6 ratio for general applications (1:4 recommended for improved tool life and surface finish).
✔ Example Fillet Guidelines (Based on common drill sizes):

  • Ø 0.125” (3.18 mm) drill → Fillet radius: 0.085” – 0.100” (2.16 – 2.54 mm)
  • Ø 0.250” (6.35 mm) drill → Fillet radius: 0.145” – 0.175” (3.68 – 4.45 mm)
  • Ø 0.500” (12.70 mm) drill → Fillet radius: 0.270” – 0.325” (6.86 – 8.26 mm)

✔ Custom Fillet Requirements – Specified per ISO 286 and design tolerances.

Optimizing internal fillets improves machining efficiency, reduces tool wear, and enhances part durability.

                                 Floor Fillets

✔ Recommended Floor Fillet Size – Should be 0.010” – 0.030” (0.25 – 0.76 mm) smaller than internal corner fillets to allow the same tool to clear material efficiently.
✔ Guideline for Floor vs. Corner Fillets:

  • Corner Fillet: 0.100” (2.54 mm) → Floor Fillet: 0.070” – 0.090” (1.78 – 2.29 mm)
  • Corner Fillet: 0.150” (3.81 mm) → Floor Fillet: 0.120” – 0.140” (3.05 – 3.56 mm)
  • Corner Fillet: 0.250” (6.35 mm) → Floor Fillet: 0.220” – 0.240” (5.59 – 6.10 mm)

✔ Machining Best Practices – Matching floor fillets with tool corner radius enhances tool life and improves machining efficiency.
✔ Custom Floor Fillet Specifications – Defined per ISO 286 and project requirements.

Optimizing floor fillets minimizes tool changes, reduces machining time, and ensures smooth internal transitions.

                                      Undercuts

✔ Standard Undercut Sizes – Should follow ISO 509 / DIN 509 for accessibility and machining efficiency.
✔ Recommended Dimensions:

  • Width: 0.020” – 0.060” (0.50 – 1.52 mm) larger than the cutting tool width.
  • Depth: 0.010” – 0.030” (0.25 – 0.76 mm) shallower than the maximum tool reach to prevent tool deflection.
    ✔ Placement Guidelines – Undercuts should be positioned at least 2× tool diameter away from internal corners to allow proper tool access.
    ✔ Standard Groove Undercut Sizes (Based on common tool sizes):
  • Ø 0.125” (3.18 mm) tool → Undercut width: 0.145” – 0.185” (3.68 – 4.70 mm)
  • Ø 0.250” (6.35 mm) tool → Undercut width: 0.270” – 0.310” (6.86 – 7.87 mm)
  • Ø 0.500” (12.70 mm) tool → Undercut width: 0.520” – 0.560” (13.21 – 14.22 mm)

✔ Custom Undercuts – Must be specified in drawings and comply with ISO 286 tolerances.

Proper undercut design improves machinability, reduces tool breakage, and ensures clean, precise cuts

               Tapped/Threaded Hole Depth                                   ✔ Clearance Beyond Thread Depth – Provide an extra 0.050” – 0.100” (1.27 – 2.54 mm) of tool clearance beyond the tapped hole depth to ensure full thread formation.
✔ Recommended Thread Engagement (Material-dependent):

  • Soft Metals (Aluminum, Brass, Plastics) → 1.5× diameter
  • Medium Hardness Metals (Steel, Stainless Steel) → 1.0× – 1.5× diameter
  • Hard Metals (Titanium, Tool Steel) → 0.75× – 1.0× diameter
    ✔ Standard Clearance Depth (Based on thread size):
  • M3 / #4-40 → Tap depth: 6mm (0.236”), clearance depth: 7mm (0.276”)
  • M6 / 1/4-20 → Tap depth: 12mm (0.472”), clearance depth: 13.5mm (0.531”)
  • M10 / 3/8-16 → Tap depth: 20mm (0.787”), clearance depth: 22mm (0.866”)
    ✔ Blind Hole Best Practices – Avoid full-depth threading in blind holes; leave at least 2-3 unthreaded pitches at the bottom.
    ✔ Custom Thread Depths – Defined per ISO 965 / ISO 286 tolerances and application needs.

Optimizing thread depth ensures strong, fully-formed threads while preventing tool breakage and chip buildup.

         Complexity Optimization

✔ Minimize Small Cuts – Avoid features smaller than 0.020” (0.50 mm) unless functionally required to reduce machining time and costs.
✔ Recommended Feature Size:

  • Minimum Slot Width – 0.062” (1.57 mm) for standard end mills
  • Minimum Hole Diameter – 0.040” (1.00 mm) for standard drills; 0.020” (0.50 mm) for micro-drilling
  • Minimum Engraving Depth – 0.010” (0.25 mm) for visibility without excessive tool wear
    ✔ Optimal Wall Thickness:
  • Metal Parts → ≥0.020” (0.50 mm)
  • Plastic Parts → ≥0.040” (1.00 mm)
    ✔ Feature Consolidation – Combine pockets and slots when possible to reduce tool changes and machining time.
    ✔ Custom Feature Requirements – Defined per ISO 2768-mK for general tolerances.

Reducing unnecessary complexity lowers machining costs, improves part strength, and enhances production efficiency.

Custom CNC Machining for Non-Standard Parts – Save 20% on Costs & Reduce Risks

We offer custom CNC machining for non-standard metal and plastic parts across industries like Medical, Aerospace, Automotive, Robotics, and Drones. Our services help reduce design risks by up to 30%, cut production costs by 20%, and deliver parts 15% faster than traditional methods.

Photographic Equipment Manufacturers

CNC Machining for Photographic Equipment: Precision, Anodizing, Custom Rigs

Photographic Equipment parts by cnc machining
  • Optical Component Precision: ±0.005mm tolerances, critical for lens mounts and focusing mechanisms
  • High-End Anodizing:Type II, Type III, hard-anodizing, for durability and aesthetics
  • Custom Rigs & Accessories: Design and machining of specialized supports, cages, and adapters
  • Lightweighting Solutions:Aluminum, Magnesium, for comfortable handheld use
  • Rapid Prototyping & DFM:3-7 day turnaround, design for manufacturability, accelerating your product launch
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Medical Components Manufacturing

Medical CNC Parts: 10+ Materials (Ti, SS, PEEK) | 1,000+ Delivered | ±0.002mm, ISO 13485

Medical Components parts by cnc machining
  • Precision:±0.01mm tolerances, Ra 0.2µm surfaces
  • Bio-Materials: PEEK, Titanium, Stainless expertly machined
  • Microfluidics :0.2mm channels, complex geometries
  • Sterile-Ready: Autoclave, EtO, Gamma compliant
  • ISO 13485 Certified:Cleanroom, full DHR, fast turnaround.
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Aerospace Parts Manufacturing

High-Strength Alloys, AS9100D, Complex Geometries

Aerospace parts by cnc machining
  • Light weighting Experts:Aluminum, Magnesium, Titanium - optimized for weight reduction
  • High-Precision:±0.005mm tolerances, complex contours, thin-wall machining.
  • Exotic Alloys: Inconel, Hastelloy, Waspaloy - high-temp & corrosion resistance.
  • AS9100D Certified:FAI, PPAP, traceability for critical components
  • Rapid Prototyping:3-7 day turnaround, DFM analysis, accelerating your development
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Auto Parts Manufacturing

Automotive CNC Machining: High-Volume, IATF 16949, Custom Aftermarket Parts

Racing parts by cnc machining
  • High-Volume Production: Multi-axis machining, automation-ready, for large orders
  • IATF 16949 Certified: PPAP, APQP, FMEA, ensuring automotive quality standards
  • Custom & Aftermarket: Expertise in modified, performance, and restoration parts
  • Material Versatility: Steel, Aluminum, Plastics - for diverse automotive applications
  • Fast Turnaround & DFM:3-7 day prototypes, cost optimization, accelerating your time-to-market.
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Robotic Parts Suppliers

Robotics CNC Machining: Precision, Lightweighting, Custom End-Effectors

Robotic parts by cnc machining
  • Precision Motion Control: ±0.01mm tolerances, smooth surfaces (Ra 0.1µm), for precise movement
  • Lightweighting Expertise:Aluminum, Titanium, Carbon Fiber - optimizing strength-to-weight ratio.
  • Custom End-Effectors & Grippers:Design & machining of specialized robotic tooling
  • Complex Geometries:5-axis machining, intricate internal features, for compact designs
  • Rapid Prototyping & Iteration:3-7 day turnaround, DFM, accelerating your robot development
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Drone Parts Manufacturers

Custom Drone Parts Manufacturing: Lightweight, High-Strength, AS9100D

Drone parts by cnc machining
  • Extreme Light weighting: Aluminum, Magnesium, Carbon Fiber - maximizing flight time
  • High-Strength Alloys:Titanium, 7075-T6 Aluminum - for durability and crash resistance
  • Aerodynamic Optimization: Complex geometries, thin walls, for efficient airflow
  • AS9100D Certified:FAI, PPAP, for critical drone components
  • Rapid Prototyping & DFM:3-7 day turnaround, design optimization, accelerating your UAV development.
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What is Advantages of CNC Machining for Your Projects ?

LK Tools’ CNC machining delivers 0.001-inch precision, 1000 parts per day, and 15% material savings, maximizing your ROI

  • Fast & Precise – CNC-milled prototypes and production parts in 2-5 days.
  • Material Options – Over 30+ plastics & metals, including Aluminum 6061/7075, Stainless Steel 304/316, Titanium, PEEK, Delrin, Nylon.
  • Scalable Production – From 1 to 100,000+ parts with competitive pricing
  • Certifications – AS9100D, ISO 9001:2015, ISO 13485, IATF 16949:2016, ITAR Registered.
  • Quality & Finishing – FAI reports, material certifications, plus anodizing & chromate plating.
  • High-precision machining for aerospace, automotive, medical, and industrial applications.
  • 15+ expert engineers with AI to reduce your design risks by up to 30% and lower manufacturing costs by 20-50% before production begins
  • Factory Pricing – 30% material savings, 55% tariff cuts, zero platform fees
  • Risk-Free Guarantee – 100% refund or free rework in 48h, including shipping
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Auto Parts Manufacturing

We Aim to Contribute Well to Your Company

You Design It, We'll Make It – Custom Parts Made Just for You

Step 1

Upload Design Submit the important details about your project.

Step 2

DFM Review We perform a design analysis to optimize your parts.

Step 3

Confirm Quote We begin working with our team to make your ideas a reality

Step 4

Samples with FAI report to your confirm

Step 5

Production Starts-Your custom parts

Step 6

Delivered straight to your doorstep 100% inspection
Looking to reduce risk? Let’s review your design with our AI-assisted DFM to reduce production risks by 30%

CNC Machining Service | You Design It, We'll Make It

Custom Your Products

With over 20 years of factory experience, we specialize in delivering high-quality, custom parts quickly. Get instant online quotes, samples in 3-7 days, and orders in 15 days, all while reducing manufacturing risks and optimizing costs.

  • Step 1: Upload Your CAD Files

We accept a wide range of CAD file formats including STP, IGS, X_T, SolidWorks, and others. Upload your designs through our quote page or email us your project details. Your intellectual property is safe with us—all files are protected under an NDA

  • Step 2: Instant Quote & DFM Analysis

Within 24 hours, receive a quote with Design for Manufacturing (DFM) analysis. We suggest cost-saving improvements and recommend from 150+ materials, 35 machining processes, and 33 surface treatments.

  • Step 3: Design Modifications & Cost Optimization

We assist with design modifications to streamline production and reduce costs. With tolerances up to +/-0.01mm, we ensure precision and quality. We also provide FAI, COC, and SGS material reports for your confirmation.

  • Step 4: Fast Production & Delivery

Prototypes and parts are produced in 5-7 days and shipped via international express. Receive regular updates with photos and 100% inspection before shipment.

5 axis cnc machining5 axis cnc machining services
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How We Handle Details Makes Us Different

Surface Finishing

Precision sandblasting with Ra 0.4μm-6.3μm adjustable roughness (competitors: Ra 1.6μm min), backed by ISO 8501-1 Sa 2.5 certification for critical valve applications. 50+ custom texture options to enhance corrosion resistance.

Multi-axis Drilling & Boring

Complex valve bore machining with 5-axis CNC gantry mills (positioning accuracy: ±0.005mm) – 3x higher efficiency than standard 3-axis machines. 100+ boring tool libraries for diameters from 10mm to 500mm

Fine CNC Machining

Ultra-precision finishing with ±0.002mm tolerance (competitors: ±0.05mm) and CPK≥1.67 stability reports. 48-hour free sample service with full dimensional inspection data.

150+ Materials & Manufacturing Solutions

Largest material portfolio: 157 metal/plastic grades (incl. Inconel 718, Titanium Gr5, PEEK-CA30), 20% more options than Xometry. Free material selection guide + DFM analysis within 6 hours

Engineering Partnership

Embedded DFM/FEA engineers reduce client design iterations by 50% through simulation-driven optimization.

CNC machining Visual Advantage

Interactive 3D report portal with machining simulation videos (competitors use static PDFs). 8 patented technologies (CNC vibration damping system, thin-wall deformation control).

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Fully Customizable CNC Solutions
Precision, Speed & Cost Savings Tailored CNC Machining for Your Unique Projects
  • 150+ Materials: We offer a wide selection, including rare and high-performance options
  • Precision Tolerances: Achieve ±0.01mm accuracy, exceeding industry standards
  • Flexible Orders: We accept orders from 1 to 1,000 pieces, no minimum.
  • Faster Turnaround: Our competitors may take weeks to deliver samples, but we offer sample delivery in 3-7 days and full production in 2-4 weeks, significantly reducing wait times
  • Fast Delivery: 3-7 day samples and 2-4 week production for quicker turnaround.
  • 30-50% Cost Savings: Our DFM services optimize designs to cut costs
  • ISO 9001 Certified: 100% inspection ensures top-quality parts.
  • Global Trust: Trusted by brands like Nidec and Panasonic for high-demand projects
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Quality Management and Assurance

Raw Material, Processing, Finished Products Inspection

Analysis of Chemical Element
Analysis of Chemical Element

Our portable spectrometers analyze raw materials with up to 99% accuracy, checking key properties like tensile strength, hardness, and corrosion resistance to meet strict procurement specs. This ensures consistent quality and reduces production risks

CMM Testing
CMM Testing

The part was inspected using a CMM (Coordinate Measuring Machine) with a precision of +/- 0.001mm. All critical dimensions and features were measured, and the part met the required specifications, passing inspection

Mechanical Hardness Test

Raw materials are tested with our universal testing machine, measuring mechanical properties like tensile strength and yield strength with ±0.5% accuracy, ensuring they meet our design requirements

-cnc-machining-surface-roughness-inspection----ple (2)
Surface Roughness Inspection

Roughness comparison blocks with Ra values from 0.1 to 6.3 µm are used to verify that the raw material’s surface meets drawing requirements for smoothness, jamming resistance, and scratch resistance, ensuring ±0.05mm tolerance

Dimension Inspection

Inspectors measure the size of raw materials using Vernier calipers with an accuracy of 0.02mm and thickness gauges with a precision of 0.01mm to ensure that the materials meet our procurement standards for dimensions and tolerances. This ensures consistency and quality across all materials.

Packaging Inspection

Customized packaging is inspected for defects, ensuring 100% of 1,000+ industrial valves are securely packed and arrive in perfect condition

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Over 150 Premium Materials for Custom Machining Solutions
Brass for machining

Brass (e.g., C36000, C26000) offers excellent machinability, corrosion resistance, and a smooth finish. With tight tolerances (±0.01mm), it ensures reliable, long-lasting parts, ideal for electrical connectors, heat-sensitive components, and decorative applications where both functionality and appearance are crucial.

Stainless Steel for Machining

Stainless steel is known for its high strength (up to 580 MPa) and excellent corrosion resistance, making it ideal for harsh environments. With grades like 303,304 and 316, it ensures long-lasting, durable parts. Precise machining (±0.01mm) helps reduce maintenance and improve reliability, providing cost-effective solutions for industries like automotive, medical, and manufacturing.

Nylon for Machining

Nylon (e.g., Nylon 6, Nylon 66) is a durable, wear-resistant plastic, ideal for tough, high-performance parts. With excellent strength and resilience, it’s commonly used in mechanical components. Precise machining (±0.01mm) ensures reliable performance and longevity in industries like automotive, aerospace, and manufacturing.

3 Axis CNC Machining
Aluminum for Machining

Aluminum (e.g., 6061, 7075) is up to 4x lighter than steel and offers excellent corrosion resistance, making it ideal for harsh environments. With precise tolerances (±0.01mm), it reduces weight while maintaining strength, improving efficiency and performance in industries like aerospace, automotive, and manufacturing.

ABS Plastic Machining

ABS (e.g., ABS 330, ABS 420) is impact-resistant and durable, ideal for stable parts. With tight tolerances (±0.01mm), it ensures reliable performance in prototypes and end-use applications across automotive, electronics, and consumer goods.

Polycarbonate(PC)Machining

Polycarbonate (e.g., PC 150, PC 240) offers exceptional toughness (impact strength up to 900 J/m) and clarity, making it perfect for strong, transparent parts. With precise machining (±0.01mm), it ensures durability and visual clarity in applications like automotive, medical, and electronics.

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Industries We Serve

150+ Industries – Automotive, Medical, Aerospace, Robotics, Industrial Equipment, Electronics & More

Aerospace parts manufacturers

Precision parts for critical aerospace applications, including turbine blades and structural components.

Custom Car parts Manufacturer

Custom engine and transmission parts, machined to ±0.01mm tolerance, ensure reliability, efficiency, and durability for optimal automotive performance

Medical cnc machining

Accurate machining for medical devices, from surgical instruments to implantable components.

Robotic parts manufacturers

Specialized parts for robotic systems, providing the precision and reliability required for advanced automation.

Custom Drone Parts Manufacturing

We offer custom UAV and drone parts, machined to ±0.01mm tolerance, ensuring durability and top performance.

industrial equipment manufacturer

Custom industrial machinery parts, precision-machined to ±0.01mm tolerance, ensuring durability and reliable performance in harsh environments.

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20+
Years of Experience
LK Factory

About LK Tools

Founded in 2009 in Dongguan, China, LK Tools specializes in custom CNC machining for non-standard hardware and plastic parts. Operating from a 10,000 m² ISO 9001:2015-certified facility, we offer CNC machining (3-5 axis), turning, injection molding, die casting, stamping, welding, and assembly.

With ±0.01 mm precision, we process 75+ materials, including aerospace alloys and medical-grade polymers. Strategically near Shenzhen’s ports, we ensure fast global shipping with 48-hour prototype turnaround.

Why Choose LK Tools?

✔ AI-Powered CMM Inspection – Zero defects guaranteed
✔ Fast & Cost-Effective – Optimized efficiency & savings
✔ 100% Refund Guarantee – Risk-free quality assurance
✔ 24/7 Engineering Support – Bilingual expert assistance
✔ AS9100D & IATF 16949 Certified – Trusted by top industries

Serving Automotive, Aerospace, Robotics, Medical & Electronics

LK Tools: High-Precision, Fast Delivery, Reliable Manufacturing

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Our production environment

We are factory direct sales, from consumers to stores to wholesalers to agents to general distributors to factory merchants, choose us to save a lot of intermediate links, to bring you the maximum profit margin!

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Experienced CNC machining specialists offering custom solutions for non-standard hardware and plastic parts

With 20 years in the business and over 50,000 successful projects, we’re known for delivering precise parts with tolerances as tight as ±0.01mm. We focus on making the process simple and cost-effective for you, providing fast samples (3-7 days) and quick production, all while ensuring top-quality results tailored to your needs.

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Certifications Report

  • ISO 9001:2015 Certified
ISO9001
  • IATF16949 Certifed
  • ISO14001
ISO1400
  • FAI Report
FAI Report
  • COC Report
COC
  • SGS Report
SGS Report
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Project Construction

We have rich project experience and can tailor a solution for your project based on your needs, providing excellent quality at a low cost.

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Your Parts Machining Questions, Our Solutions

Your CNC Machining Problems, Our Precision Solutions – Fast, Reliable, and Cost-Effective

At LK Tools, we provide 35+ custom CNC machining solutions for metal and plastic parts with ±0.005mm precision. We help you save up to 20% on manufacturing costs, offering quick turnaround—7-10 days for prototypes and 15-20 days for production runs.

Why Choose LK Tools?

  • 80+ CNC Machines for high-volume and complex parts.
  • Cost reduction of up to 20% through optimized processes.
  • Precision tolerances as tight as ±0.005mm.
  • Fast lead times: prototypes in 7-10 days, production in 15-20 days.
  • Free DFM (Design for Manufacturability) analysis to ensure your design is production-ready.
  • Sample fee deduction: The cost of your sample is credited toward your order if you proceed with full production.
  • Strict quality control for consistent, reliable results.

Industries We Serve: Automotive, Aerospace, Medical Devices, Electronics, Industrial Machinery.

Get the precision, speed, and cost efficiency you need with LK Tools.

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Do you provide samples? Is it free or extra?

Yes, we provide CNC machining samples. The CNC milling sample fee typically ranges from $50 to $200, depending on the product geometry. The fee will be refunded when you place a bulk order of 100 pieces or more

  • Sample delivery: 3-7 days
  • Mass production: Typically 7-35 days, depending on the order size and part complexity. For large orders, production might take up to 40 days. We can expedite this upon request for urgent needs.

Standard practice. We’ve executed 387 NDAs this year covering 58 jurisdictions. All employees undergo annual IP protection training

First 3 design iterations are free within 30 days. Our engineers provide DFM optimization videos showing simulated stress distribution

✓ 20-30% cost reduction through material optimization and process streamlining.

✓ 30%+ risk mitigation via stress simulations and industry standards (API/ASME).

✓ 24-hour DFM report with actionable steps to cut machining time and material waste.

Free sample analysis for orders under $50.

  • 36-hour automated DFM feedback covering 55+ manufacturability metrics
  • 92% reduction in first-piece scrap rates through virtual machining simulations
  • 89% design optimization success rate validated by 500+ automotive projects

Yes. Our intelligent production scheduling allows multi-batch delivery with synchronized inventory tracking. Last month we completed 17 phased shipments for NASA contractor parts

Our cross-material database offers 82 alternative materials with DFM comparison reports. Recently saved a client 63% cost by switching from Titanium to PH stainless steel

Factory-wide Class III security zones with:

• Biometric access control

• Encrypted file transfer (AES-256)

• Automatic digital watermarking

• Secure cloud backup

Our micro-arc oxidation (MAO) reaches 1,200 hours neutral salt spray test (ASTM B117), forming 50-300μm ceramic coating on aluminum alloys

① Full-dimension CMM report

② 30x sample photos

③ Statistical process control (SPC) charts

④ Material traceability codes

If you don’t have a drawing, you can send us a physical sample, and we will reverse engineer it or offer a better design solution. We can also help with part simplification or design 3D model for manufacturability (DFM) to reduce complexity and manufacturing costs.

Yes, our engineering team can assist with product design, material selection, and process optimization to ensure manufacturability, cost-efficiency, and reduced risks.

Yes, we can accommodate urgent delivery requests. We have the flexibility to adjust production schedules and expedite both production and shipping. Depending on your needs, we can prioritize your order to ensure delivery within 1-2 weeks, or even within 3-7 days for urgent sample shipments. Just let us know your required delivery date, and we’ll do everything we can to meet it.

We offer flexible shipping options, including:

  • Sea Freight (For large orders, 15-30 days transit)
  • Air Freight (7-10 days transit)
  • Express Delivery (FedEx, DHL, UPS—3-7 days)
    We can assist with customs clearance and delivery to your location, including port-to-door service.

Our standard payment terms are 50% deposit with the order and 50% before shipment. We accept PayPal for smaller orders (up to $5,000) and T/T (bank transfer) for larger orders. Please contact us if you need alternative payment methods.

We offer a variety of surface finishes, including:

  • Anodizing (available in multiple colors: clear, black, red, blue, gold, etc.)
  • Polishing (mirror finish, satin)
  • Powder Coating (matte, glossy, textured)
  • Electroplating (chrome, nickel, gold)
  • Shot Blasting
  • Zinc Plating (yellow, black, or clear)
  • E-Coating
    We can also meet specific surface roughness requirements, typically Ra 0.2 to 0.8 µm

We ensure product quality through:

  • 100% inspection before shipping
  • ISO 9001 certified processes
  • FAI (First Article Inspection)
  • Certificate of Conformance (COC)
  • Detailed Material Test Reports (MTR) for specific parts, including composition and performance testing.

Smart Product Classification: Redesign components to qualify for duty-free HTS codes (e.g., 8537.10 for valve parts).
Regional Value Optimization: Ensure >55% North American value content under USMCA for tariff exemptions.
Duty Recovery Programs: File Chapter 19 U.S. Customs refund claims for materials re-exported after processing.

  • Military-Grade Protection: Custom-fitted foam inserts, honeycomb shock absorbers, and IP67-rated waterproof packaging.
  • Global Shipping Options: Choose DHL Express (3-5 days) or Sea Freight (cost-optimized) with real-time tracking.
  • Guarantee: If parts are damaged in transit, we’ll remake and reship for free within 72 hours.
  • 30-Day Full Refund: Approved return requests receive 100% money back (including shipping fees).
  • Free Rework Priority: Prefer adjustments? Send specific feedback, and we’ll reprocess parts in 48 hours.
  • Zero-Hassle Process: Simply email sales@lkchinamfg.com with order # and photos. We handle the rest.

Full transparency from mill to machine.

Batch Certification: Scanned MTRs (Mill Test Reports) attached to every order.
XRF Gun Verification: Cross-check alloy composition on delivery.
Material Sourcing: Opt for Conflict-Free titanium, or recycled 6061 aluminum (CN/US/EU origins).

Relax. We’ve delivered 14,500+ CNC projects for Fortune 500 engineers and startups alike.

-100% Refund Promise: No fine print – if we fail, you don’t pay.

-Dedicated Engineer: One point of contact from quote to delivery

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LK Tools is Your Best Reliable Partner

Trusted by engineers, product managers, and purchasing leaders at the world's most successful companies and universities

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1000+
Happy Clients
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Have a CNC Machining Problem? We’ve Got the Precision You Need!
We specialize in precise CNC machining with +/-0.01mm tolerance, ensuring that every metal and plastic part meets your exact specifications. No more worries about deformations or dimensional changes—just consistent quality, every time
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At LK Tools, we believe in clear and transparent communication. We work closely with you to ensure every requirement and specification is understood, helping you avoid costly misunderstandings and delays.
95%
Our commitment doesn’t stop at delivery. We offer 24/7 after-sales support to address any performance, quality, or durability concerns. Whether you need assistance or adjustments, we’re always ready to help, ensuring long-term satisfaction.
93%
Our ISO 9001-certified processes ensure that each component is thoroughly inspected with advanced equipment before it leaves our factory. You can trust that every part is up to the highest standards and ready for your production line
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We understand the importance of timely deliveries. With our efficient project management and ERP system, we ensure your orders are completed on time. Regular updates keep you informed on progress, so there are no surprises—just reliable service
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CNC Machining Services – Custom Parts with 100% Refund Guarantee!

Looking for a reliable source factory to cut out middlemen and save costs? We specialize in custom metal and plastic parts for all types of non-standard equipment, offering precision machining, flexible customization, and expert production.

  • Tailor-Made Precision – Customize sizes from 1mm to 1000mm, materials including aluminum, stainless steel, and plastic, and choose from 100+ colors and textures to fit your exact needs.
  • Factory-Direct Pricing – No intermediaries, saving you up to 30% on costs while ensuring a 5-10 day production turnaround.
  • 30-Day Full Refund – If not satisfied, get 100% of your money back within 3 business days, including shipping fees
  • Fast Rework, No Delays – Need changes? Provide feedback, and we’ll reprocess within 48 hours and ship your updated parts within 3-5 days.
  • Seamless Support – Simply email sales@lkchinamfg.com with your order number & photos, and we’ll provide a resolution within 24 hours—no hassle, no stress.
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Get free custom processing for samples under $50, plus a DFM report to help you optimize your design and save up to 30% on costs and risks. Receive your quote and product analysis within 30 minutes, and get your samples in just 3-5 days!

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Samples in 1 day, $50-200 fee refunded on 100+ units
  • Send Your Design Files – NDA-protected & secure data transfer
  • Get DFM & Cost Analysis in 24H
  • Get 150+ Materials & 35+ Finishing manufacturing solutions
  • Zero-Risk Offer – First 3 design iterations free, no upfront payment.
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  • Send Your Design Files – We sign NDAs and keep your data secure
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  • Pay Nothing Upfront for First 3 Design Iterations
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