Thread Milling
High-precision thread mills designed for efficient thread production with superior control, flexibility, and thread quality across a wide range of materials.
About Thread Milling
MZG Tool Group's thread mills are precision-engineered cutting tools designed for creating internal and external threads using a milling process. Unlike taps, thread mills rotate about their own axis while simultaneously following a helical toolpath, offering significant advantages in flexibility and control.
Thread milling allows for the production of various thread sizes with a single tool, reducing inventory requirements and increasing versatility. The process also enables threading in hard materials, blind holes, and thin-walled components with reduced risk of tool breakage.
All MZG thread mills are manufactured to precise tolerances and undergo rigorous quality control to ensure exceptional performance and reliability. Our technical experts are available to help you select the right thread mill for your specific application.
Advantages
- Lower risk of tool breakage
- One tool for multiple thread sizes
- Suitable for hard materials
- Ideal for blind holes
- Better chip evacuation
- Left and right-hand threads with same tool
Single Profile Thread Mill
Single profile thread mill for precise thread milling in various materials
Multi-Profile Thread Mill
Multi-profile thread mill for multiple thread sizes with one tool
Helical Thread Mill
Helical thread mill for high-efficiency thread milling in one pass
Form Thread Mill
Form thread mill for specialized thread profiles and custom applications
NPT Thread Mill
Specialized thread mill for NPT/NPTF pipe threads
Micro Thread Mill
Precision micro thread mill for small thread sizes
Thread Milling vs. Tapping
| Feature | Thread Milling | Tapping |
|---|---|---|
| Tool Breakage Risk | Low - can be easily retracted | High - especially in blind holes |
| Thread Size Flexibility | High - one tool for multiple sizes | Low - one tap per thread size |
| Hard Materials | Excellent performance | Limited performance |
| Chip Evacuation | Excellent | Challenging in blind holes |
| Thread Direction | Both left and right with same tool | Requires specific tap for each direction |
| Process Speed | Slower for single threads | Faster for single threads |
| Thin-Walled Components | Ideal - lower radial forces | Challenging - higher radial forces |
Technical Information
Thread Mill Types
- Single Profile - for specific thread sizes
- Multi-Profile - for multiple thread sizes
- Helical - for single-pass thread milling
- Form - for specialized thread profiles
Thread Standards
- Metric (M)
- Unified (UN/UNC/UNF)
- Pipe Threads (NPT/NPTF)
- Whitworth (BSW/BSF)
- Trapezoidal
- Custom profiles available
Material Compatibility
- Aluminum and non-ferrous alloys
- Steel (low to high carbon)
- Stainless steel
- Cast iron
- Hardened materials (up to 65 HRC)
- Titanium and exotic alloys
- Composites and plastics
Programming Considerations
Thread milling requires helical interpolation capability on your CNC machine. Our technical team can provide programming assistance and recommendations for optimal thread milling parameters.