1. High wear-resistant material, top-level coating, and precision grinding technology, 50%-200% more efficient than traditional twist drill;

2. The simple and convenient interchangeable insert structure can make inserts replacement on the machine tool directly;

3. With powder high-speed steel and cemented carbide two materials, have more widely used;

4. With morse taper and lateral fixation type shank, it can be used for both traditional machine tools and CNC machine tools;

5. Only 16 holders can cover inserts φ9.5-φ114mm;

6. The holder's internal cooling design has excellent chip removal performance and cooling effect.