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KT TOOL provides precision CNC machining services using state-of-the-art 3-axis, 4-axis, and 5-axis machining equipment, including DMG MORI, Mazak, and Haas machines. We specialize in manufacturing complex components with tight tolerances and high-precision finishes, catering to industries such as aerospace, automotive, medical, and consumer electronics.
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5-axis simultaneous machining for complex multi-surface geometries -
Tolerances down to ±0.001 mm on critical features
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70+ CNC centers: milling, turning, mill-turn combined
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Full traceability: CMM inspection + material certs on every order
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CNC parts manufactured as fast as 1 day
CNC parts with tolerances down to ±0.001mm
Full material compatibility for metals & plastics
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Engineering support for design optimization
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Rapid prototype to production transition
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Multi-axis machining capability
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ISO 9001:2015 certified QMS
Our CNC Machining Processes
70+ milling centers. 3/4/5-axis capabilities. Tolerances to ±0.01mm with Ra 0.8–1.6μm surface finish. Aluminum, stainless, titanium, and engineered plastics — from prototypes to mid-volume production.
Turn-mill centers with live tooling — milling, drilling, and threading in one setup. Hundreds of thousands of shafts, bushings, and connectors annually. Critical fits held to ±0.005mm.
True simultaneous 5-axis motion eliminates repositioning errors. Impellers, valve bodies, precision housings completed in one operation. DFM support from our process engineers.
Typical CNC Machined Parts
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Aluminum housings -
Precision shafts -
Mechanical brackets -
Threaded connectors -
Heat sinks -
Bushings -
Electronic enclosures -
Custom machine components -
Valve components -
Structural plates
Have a similar part to manufacture?
Get Free Quote CNC Machining Materials
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. Metal .-
Aluminum Alloys
Lightweight, corrosion-resistant, and easy to machine. Ideal for parts requiring strength with reduced weight.
Typical Applications- Electronic Housings
- Heat Sinks
- Structural Brackets
- Automotive components
Cost Efficiency:
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Stainless Steel
High strength and excellent corrosion resistance, suitable for harsh environments.
Typical Applications- Valves and fittings
- Medical components
- Mechanical parts
- Food-grade equipment
Cost Efficiency:
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Carbon Steel
Strong and durable material with good mechanical properties, widely used in industrial applications.
Typical Applications- Machine components
- Structural parts
- Industrial equipment
Cost Efficiency:
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Brass
Easy to machine with excellent electrical conductivity and corrosion resistance.
Typical Applications- Connectors
- Fittings
- Electrical components
Cost Efficiency:
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Titanium
High strength-to-weight ratio with superior corrosion resistance and biocompatibility.
Typical Applications- Aerospace components
- Medical implants
- High-performance mechanical parts
Cost Efficiency:
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. Plastic .-
ABS
Impact-resistant plastic with good machinability, widely used for functional prototypes.
Typical Applications- Electronic enclosures
- Prototype parts
- Consumer products
Cost Efficiency:
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POM (Delrin)
High dimensional stability with low friction, suitable for precision mechanical parts.
Typical Applications- Gears
- Bushings
- Sliding components
Cost Efficiency:
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Nylon (PA)
Strong, wear-resistant material with good mechanical properties.
Typical Applications- Mechanical components
- Bearings
- Structural plastic parts
Cost Efficiency:
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PTFE (Teflon)
Extremely low friction and excellent chemical resistance.
Typical Applications- Seals
- Insulation components
- Chemical industry parts
Cost Efficiency:
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PEEK
High-performance plastic with excellent strength and heat resistance.
Typical Applications- Medical components
- Aerospace parts
- High-temperature applicationsBrackets
Cost Efficiency:
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Explore our full material list or contact our engineering team for recommendations.
Surface Finishing Options
We offer a variety of surface finishing options to enhance the appearance, durability, and performance of your CNC machined parts.
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Anodizing
Anodizing increases corrosion resistance and wear properties, while allowing for color dyeing, ideal for aluminum parts.
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Sandblasting
High-speed abrasive particles create textures on the surface, remove impurities, and improve adhesion.
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Powder Coating
Powder coating provides an even surface layer, enhancing corrosion resistance and wear resistance, suitable for metal and plastic materials.
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Electroplating
Metal coatings are applied to the surface through electrochemical reactions, offering corrosion resistance and aesthetic appeal.
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Polishing
Friction removes surface irregularities, creating a smooth, mirror-like finish that enhances appearance and feel.
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Brushing
Uniform textures are created on metal or plastic surfaces through friction, enhancing appearance and durability.
*Not sure which finish is right for your part? Explore our complete guide
Tolerance Guide
Precision is critical in CNC machining. We define tolerances based on part function, material characteristics, and manufacturing feasibility to ensure optimal performance and cost balance.
Proper tolerance design helps reduce machining cost and improve production efficiency:
- Avoid over-tight tolerances where not functionally required
- Use standard tolerances for non-critical features
- Simplify complex geometries when possible
- Maintain uniform wall thickness for better stability
- Consider material behavior during machining
| Tolerance Type | Standard Tolerance (±mm) | Material | Cost Impact | Machining Feasibility |
| Non-critical Linear Dimensions | 0.10 | All metals & engineering plastics | Low | Standard 3-axis milling/turning; no special tooling required |
| Critical Linear Dimensions | 0.05 | Aluminum, Stainless Steel, Brass | Medium | Requires precision tooling & in-process inspection; avoid for brittle plastics (e.g., PEEK) |
| High-precision Linear | 0.02 / 0.03 | Aluminum 7075, Titanium, Stainless Steel | High | Needs 5-axis machining/CMM inspection; only for aerospace/medical critical components |
| Hole Positioning | 0.05 / 0.08 | All materials | Medium | Aligns with standard drill/reamer tolerances; tighter specs require reaming/boring |
| Surface Flatness | 0.05 / 0.10 | All metals | Medium | Thinner walls (< 2mm) require looser tolerances to prevent warping |
| Thread Pitch (Metric) | Class 2 / Class 3 | All machinable materials | Low/Medium | Class 2 = standard; Class 3 = high-load assemblies, requires thread grinding |
Not sure about the right tolerance for your part?
Get Free Quote Our CNC Machining Process
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STEP 1
Design Review -
STEP 2
CNC Programming -
STEP 3
Material Preparation -
STEP 4
Precision Machining -
STEP 5
Surface Finishing -
STEP 6
Quality Inspection -
STEP 7
Packaging & Delivery
Case Studies
Explore how we help customers manufacture high-quality CNC machined parts.
Guides to Optimize Your CNC Parts Design
Common CNC Machining Questions
Ready to Start Your Custom Parts Project?
Upload your drawings (STEP, STP, IGES, STL) or contact our team for a fast and confidential quotation.
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Advanced CNC Equipment
Equipped with modern CNC machines, we ensure high precision, efficiency, and consistent quality across all production stages.
Engineered CNC Machining Solutions You Can Rely On
At KT, we combine engineering expertise, advanced machining capabilities, and a reliable quality system to deliver consistent results for every project. From initial design support to final production, we focus on precision, efficiency, and clear communication to meet your expectations.
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Engineering support for manufacturability optimization
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Fast response from prototype to production
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Stable and reliable quality control system
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Experience with complex precision parts
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Efficient communication for global customers
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Flexible production for different volumes
What You Can Expect From KT
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Confidential by Default
Your files and project details are protected under strict NDA standards.
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Engineering Before Production
We review and optimize your design to ensure manufacturability and cost efficiency.
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Quality You Can Trust
Every part is inspected to meet your specifications before shipment.
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Clear & Timely Communication
Stay updated at every stage with responsive and professional support.
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Transparent Quotation
No hidden costs — clear pricing from the beginning.
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Flexible Project Support
We support design adjustments and revisions when needed.
