- High-performance rolled, steam-treated twist drill made from heavy- duty high speed steel. - The manufacturing procedure (no structural disruption) solidifies the material making it more elasticated. - This makes it more resistant to fracture and suitable for robust drilling units. (e.g. hand-held drilling machines)
- Manufactured from chrome vanadium alloyed steel. - Centre location point and outer cutting spurs for clean accurate holes. - Diameters 11mm and above the shank is reduced to 9.5 mm.