Sealed pipe joint threads
The TM851 series is a professional-grade thread end mill designed for precision machining of DIN 40430 standard 55° imperial heavy-duty pipe threads/BSW threads. Utilizing an ultra-fine grain carbide substrate, it efficiently and accurately 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 | TM851 Series |
|---|---|
| Tool Base Material | Ultrafine tungsten carbide |
| Product Name | Coated thread milling cutter |
| OEM / ODM | Made to your samples or drawings |
| Specifications/Model | 1"1/8-7 BSW |
| Lead time | Spot / 2 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Strictly adhering to DIN 40430 standards, it meets the coarse-pitch pipe thread connection requirements of heavy-duty industrial equipment, completing threading in a single pass, improving machining efficiency by 40% compared to traditional taps.
Thread pitch accuracy is controlled within ±0.008mm, and surface finish reaches Ra≤0.3μm, meeting the stringent tolerance and strength requirements of heavy-duty pipe fittings.
Utilizing HRC68 grade ultra-fine grain carbide, its chipping resistance is improved by 60%, enabling stable machining of steel, brass, stainless steel, and other pipe fitting materials.
The cutting edge radius is precisely controlled within 0.003mm, balancing sharpness and wear resistance, reducing edge chipping, and ensuring consistent machining.
Utilizing vacuum ion plating, coating adhesion is improved by 40%, preventing coating peeling and ensuring machining accuracy.
The direct action of cutting fluid reduces friction between the cutting edge and the workpiece, improving surface finish and reducing tap wear.
The cutting edge radius is precisely controlled at 0.003mm, balancing sharpness and wear resistance, reducing edge chipping, and guaranteeing consistent machining.
An eccentric cutting design eliminates the need for pre-drilling a center hole, allowing direct machining of blind holes and threads, reducing processes and improving 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.