

MJ Thread End Mill
The TC614 series comprises professional-grade, long-reach thread milling cutters engineered for the precision machining of 60° metric MJ aerospace threads (compliant with DIN ISO 5855-1). Capable of efficiently and accurately producing 60° metric threads (M-series), these tools are ideal for applications in mold making, aerospace, automotive manufacturing, and general machining. Available with a variety of high-performance coatings, the series ensures exceptional machining efficiency, superior surface finish, and consistent, long tool life across materials with hardness levels up to 28 HRC. They are particularly well-suited for machining miniature MJ1.5–MJ12 threads on steel components for aerospace sensors and navigation equipment, meeting stringent high-reliability requirements.
| Product Series | TC614 Series |
|---|---|
| Tool Substrate | Ultrafine-grained tungsten carbide |
| Product Name | Thread milling cutter |
| OEM / ODM | Made to your samples or drawings |
| Specification Model | MJ2.0 × 0.4P × D4.0 × 50L |
| Lead time | In stock / 2 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Strictly adheres to the DIN ISO 5855-1 standard to meet high-precision aerospace threading requirements; achieves thread formation in a single pass, boosting machining efficiency by 45% compared to traditional taps.
Features HRC68-grade ultrafine-grained carbide with 60% higher resistance to edge chipping, enabling stable machining of materials such as steel, aluminum alloys, and titanium alloys.
Thread pitch accuracy is maintained within ±0.003 mm, and surface finish reaches Ra ≤ 0.15 μm, meeting the stringent tolerance requirements for aerospace components.
Utilizing a vacuum ion plating process, coating adhesion is increased by 40%, preventing coating detachment that could compromise machining accuracy.
Features a uniform-diameter, reinforced shank that increases rigidity by 25%; it eliminates runout during high-speed machining, ensuring consistent thread depth and precision.
The direct action of the cutting fluid reduces friction between the cutting edge and the workpiece, improves the quality of the machined surface, and reduces cutter wear.
The cutting edge radius is precisely controlled at 0.003 mm, balancing sharpness and wear resistance, reducing edge chipping, and ensuring machining consistency.
Featuring an eccentric cutting design, it eliminates the need for pre-drilling a center hole and allows for the direct machining of blind-hole threads, thereby reducing process steps and increasing 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.