Precision CNC Machining Services for Metal Parts | Small to Large Batch
Achieve flawless results with our advanced precision CNC machining for metal parts, tailored to your exact needs. From small-batch to high-volume production, we deliver tight-tolerance components with premium surface finishing, ensuring your projects reach the highest standards.
- ±0.005mm Precision |CMM-verified
- 50+ Materials|Metals & Plastics
- 5-Day Lead Time|Rapid Delivery
- 80+ CNC Machines|5-Axis Included
Precision CNC Machining for Efficient Manufacturing
Achieve Flawless Results with Advanced Precision CNC Machining Services, Tailored to Your Exact Needs. From High-Precision Production to Premium Surface Finishing, We Deliver Solutions Designed to Elevate Your Projects.
- ±0.005mm Precision
- 5-Day Lead Time
- 80+ CNC Machines
- 50+ Materials
CNC Machining Expertise

3/4/5-Axis CNC Milling

CNC Turning service

CNC Drilling Service
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CNC Wire-Cutting (EDM)
CNC Machining Expertise
Explore the versatility of CNC processes and equipment to meet diverse project requirements.

3/4/5-Axis CNC Milling

CNC Turning service

CNC Drilling Service
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CNC Wire-Cutting & EDM
Why Choose Our CNC Machining Services
Why Choose Our CNC Machining Services
Over 30 years of experience in precision CNC machining, KEYWIN utilizes advanced equipment like HAAS CNC mills, Hexagon CMM instruments, and Olympus XRF analyzers to ensure precision and efficiency. Our skilled engineering team, with over 5,000 projects completed, specializes in customized solutions with tight tolerances up to ±0.005mm. We provide 100% quality control, ensuring durability and high performance in every part. Whether small-batch prototypes or large orders, our flexible services meet your specific requirements for exceptional results.
What is CNC Machining?
CNC (Computer Numerical Control) machining is a versatile manufacturing process that uses automated cutting to shape materials like metal, plastic, or composites. CNC machines, including 3-axis, 4-axis, and 5-axis mills, lathes, and planers, provide flexibility for precision and complex geometries. Depending on the operation, either the workpiece or the tool moves, or both for greater accuracy.

CNC Project Gallery
Explore our stunning CNC machining projects that showcase our craftsmanship and precision.








Our CNC Machining Tolerances
Understanding CNC machining tolerances is crucial for achieving the precision required in high-quality manufacturing. This guide provides an overview of the standard tolerances used in CNC machining processes.
Standards | CNC Milling | CNC Turning |
---|---|---|
Maximum Part Size | 6000 x 4000 x 800 mm 236.22 x 157.48 x 31.5 inches | 1500 × 6000 mm 59.06 × 236.22 inches |
Minimum Part Size | 0.2 x 0.2 x 5 mm 0.008x 0.008 x 0.197 inches | 1 x 50 mm 0.039 x 1.968 inches |
Minimum Feature Size | Ø 0.2mm Ø 0.008 inches | Ø 0.50 mm φ0.0019 inches |
Threads and Tapped Holes | Thread size: M1.6 – M500(0-80" - 20") Tapping depth: 2 – 5 times thread diameter | Thread size: M5 – M500(6-32" - 20") Tapping depth: 2 – 5 times thread diameter |
Standard Tolerances | +/-0.005mm 0.0002 inches | +/-0.005mm 0.0002 inches |
CNC Machining Materials
Explore a wide range of materials for CNC machining, including solutions for metal, plastic, and wood CNC machining, tailored to meet the needs of every industry and application.

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CNC Surface Finishing
Achieve the ideal texture and durability through processes such as anodizing, electroplating, and spraying, catering to the diverse needs of various industries.
CNC FAQs
Have questions about CNC machining? We’ve compiled a list of frequently asked questions to help you understand our processes better.
CNC FAQs
Have questions about CNC machining? We’ve compiled a list of frequently asked questions to help you understand our processes better.
CNC Machining for Various Industrial Applications
Our CNC machining services have been recognized by our global clientele from a variety of industries. We offer CNC machined parts for a variety of industries, including the list below and more.

Agriculture & Farming

Electronics

Drones & Robotics

Agriculture & Farming

Electronics

Drones & Robotics
From Small Batch CNC Machining to Scalable Production


On-demand CNC production
- Minimum order starts at 50 pcs
- Cost-effective, fast lead tim
- Production-grade CNC quality
- Easy to iterate before scaling
- Reliable delivery for 5,000+ pcs
- End-to-end production traceability
- Real-time QA & CMM inspection
- Tight tolerance down to ±0.005mm
From Small Batch CNC Machining to Scalable Production

Small Batch CNC Machining Services ideal for prototyping, validation, and early production — helping you iterate faster and scale with confidence.
- Minimum order starts at 50 pcs
- Cost-effective, fast lead tim
- Production-grade CNC quality
- Easy to iterate before scaling

On-demand CNC production
- Reliable delivery for 5,000+ pcs
- End-to-end production traceability
- Real-time QA & CMM inspection
- Tight tolerance down to ±0.005mm
Our Other Manufacturing Capabilities

Sheet Metal Fabrication
