- Profile-ground
- Right-hand cutting, type N
- High-performance high-speed steel
- Extra long, cylindrical
- 118° conical section
- Diametral tolerance h8
- Point thinning from 3,2 mm Ø
- Cutting speed and feed rate must not be too high for drill bit stability
- Please ensure swarf is removed frequently and cooling is sufficient
- Size - 12.7 x 295mm
- In all rotary and percussion drilling machines
- In machines for mechanical processing
- For drilling extremely deep holes
