Description:

Applied to wood drilling; excellent for high rotary speed machining; sharp edge and high impact resistance; long service life.
Advantages:
1. Better for machine tools' high rotary speed, and high or low speed cutting.
2. The second main cutting edge adopting Achimedean Spiral Principle, the edge sharper and its impact resistance higher.
3. The design of two back angles and several cutting edges to disperse cutting force, to reduce edge crack and inactiviation..
Suggested parameters:
1: Used for CNC and drill rig machining
2: Speed: 4500-8000r/min
3: Feeding speed: 2-8m/min
4: Maximum drilling depth: length 57.5mm,20mm; length 70mm,33mm

5. times longer service life than ordinary products