- Designed to include a wide range of hole diameters as well as drilling depths to cover the maximum of application requirements for the professional user. - Non slip shank gives better bit retention in chuck. - 2 x sharp cutting edges for extremely fast drilling into wood. - Aggressive self feed spur for rapid penetration into material.
- 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.
- Threaded centre point to aid accurate drilling. - Outer cutting spur provides clean holes with less splintering. - Special Lewis spiral flute allows for fast removal of debris and rapid drilling.