

NPSF Thread Milling Cutter
The TM565 series is a professional-grade thread end mill designed for precision machining of B1.20.3 standard 60° American Standard Dry Seal Pipe Threads / NPSF Threads. Utilizing an ultra-fine grain carbide substrate, it efficiently and precisely machines 55° Imperial Threads (G series), making it ideal for mold making, aerospace, automotive, and general machining applications. This series offers a variety of high-performance coatings, ensuring superior machining efficiency, excellent surface finish, and long-lasting tool life in a wide range of materials below 58 HRC. It is also suitable for machining precision threads on steel substrates in aerospace sensors and navigation equipment to meet high reliability requirements.
| Product Series | TM565 Series |
|---|---|
| Tool Base Material | Ultrafine tungsten carbide |
| Product Name | Left-hand coated thread milling cutter |
| OEM / ODM | Made to your samples or drawings |
| Specifications/Model | 1/8" -27 NPSF |
| Lead time | Spot / 2 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Strictly adheres to the B1.20.3 standard, meeting the threading requirements for American Standard Dryseal pipe fittings; threads are formed in a single pass, boosting machining efficiency by 40% compared to traditional taps.
Thread pitch accuracy is maintained within ±0.005mm, and surface finish reaches Ra ≤ 0.2μm, satisfying the stringent tolerance and sealing requirements of Dryseal pipe fittings.
Utilizes HRC68-grade ultra-fine grain carbide with 60% higher chip resistance, ensuring stable machining of pipe fitting materials such as steel and stainless steel.
The cutting edge radius is precisely controlled at 0.003mm, balancing sharpness with wear resistance to minimize edge chipping and ensure machining consistency.
Employs a vacuum ion plating process that increases coating adhesion by 40%, preventing coating delamination from compromising machining accuracy.
Direct application of cutting fluid reduces friction between the cutting edge and the workpiece, improving surface quality and reducing tap wear.
The cutting edge radius is precisely controlled at 0.003mm, balancing sharpness with wear resistance to minimize edge chipping and ensure machining consistency.
Features an eccentric cutting design that eliminates the need for pre-drilling center holes, allowing for direct threading of blind holes; this reduces process steps and increases efficiency.
Send the thread standard, size and tolerance class. We supply standard taps and thread mills, plus special threads made to your samples or drawings.