In high-hardness thread machining, tooling requirements are extremely demanding. Tools must maintain stable cutting performance when machining materials up to HRC70 while also delivering excellent wear resistance and anti-chipping performance.
The SAMHO HRC70 dedicated thread end mill is engineered for machining difficult materials such as high-speed steel, hardened steel, and mold steel. It is built on a high-performance substrate combined with an advanced coating technology. This significantly improves heat resistance and tool life while maintaining cutting edge strength.
Advanced Technical Features
Thread machining of high-hardness materials places significant demands on cutting tools. This is especially true in thread milling of HRC70-grade hardened steels, high-speed steels, and mold steels. These applications require stable cutting performance, high wear resistance, and strong edge-chipping resistance to ensure consistent thread accuracy and long tool life.
The SAMHO HRC70-specific thread end mill is designed for precision thread milling in high-hardness materials. It is suitable for applications requiring Go/No-Go gauge verification, ensuring consistent and reliable thread dimensions in production.
High-Adhesion, High-Wear-Resistance Coating for Extended Tool Life
The tool uses an advanced high-performance coating that improves hardness and thermal stability.
- Strong Wear Resistance: Maintains a stable cutting edge under high-speed machining and dry or MQL conditions.
- Improved Chipping Resistance: The coating bonds strongly with the carbide substrate, helping resist impact and abrasion when cutting hardened materials.
Geometry Optimized for Thread Milling Performance
The tool design is optimized specifically for thread milling applications.
- Improved Cutting Stability: Reduces cutting forces and vibration, improving thread consistency.
- Accurate Thread Profile Control: Supports precise internal and external thread milling with stable dimensional results.
- Efficient Chip Evacuation: Helps prevent chip buildup and reduces the risk of surface damage during machining.
Fine-Grain Carbide Substrate with Precision Grinding
The tool is manufactured from high-strength fine-grain carbide and finished using precision grinding processes.
- Stable Dimensional Control: Supports high repeatability in production environments.
- High Fracture Resistance: Performs reliably under interrupted cutting and high-load conditions.
- Reliable Production Performance: Suitable for both batch manufacturing and high-precision mold machining.
Versatile Application Range
This HRC70 thread milling cutter series is designed for precision thread machining in high-hardness materials. It is widely used in the following applications:
- Internal and external thread machining in high-speed steel (HSS)
- Thread milling of hardened steels (HRC 50–70) and quenched steels
- Machining and repair of threaded holes in mold steels
- High-precision thread formation in mold components
- Precision thread machining requiring strict Go/No-Go gauge inspection
Why Source Wholesale from SAMHO?
- Designed for High-Hardness Thread Machining
Supports stable threading in HRC50–70 materials, including hardened steel, high-speed steel, and mold steel. - Consistent Thread Accuracy
Meets Go/No-Go gauge requirements, ensuring reliable dimensional control in batch production. - High Wear Resistance and Anti-Chipping Performance
Suitable for high-speed and high-load threading applications, helping extend tool service life. - Stable Machining Performance
Reduces vibration and cutting instability, improving thread quality and surface consistency. - Wide Industrial Application Range
Commonly used in mold manufacturing, precision component production, and high-precision mass threading operations.
With stable performance, long tool life, and consistent accuracy, the SAMHO HRC70 series provides a reliable solution for precision threading in high-hardness materials.











