NPTF Thread Milling Cutter
The TM559 series is a professional-grade thread end mill designed for precision machining of ANSI B1.20.3-1976 standard 60° dry-seal tapered pipe threads/NPTF threads. Utilizing an ultra-fine grain carbide substrate, it efficiently and precisely machines 60° American standard threads (NPT 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 suitable for machining precision threads on steel substrates in aerospace sensors and navigation equipment to meet high reliability requirements.
| Product Series | TM559 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 | 1/16" -27 NPTF |
| Lead time | Spot / 2 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Strictly adheres to the ANSI B1.20.3-1976 standard, meeting the threading requirements for US-standard Dryseal taper pipe fittings; the tapered thread is formed in a single pass, boosting machining efficiency by 40% compared to traditional taps.
Thread pitch accuracy is controlled within ±0.005mm, taper tolerance is ≤0.01mm, and surface finish reaches Ra ≤0.2μm, satisfying the stringent tolerance and sealing requirements of Dryseal taper pipe fittings.
Utilizes HRC68-grade ultrafine-grain carbide with 60% higher chip resistance, enabling stable machining of fitting materials such as steel and stainless steel.
The cutting edge radius is precisely controlled at 0.003mm, balancing sharpness and 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 precision.
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 and 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.