The design of the drill head ensures increased durability, drilling speed and service life thanks to an aggressive head design with flat cutting edges to reduce wear. The 160° cutting edge design of the drill head enables even more precise drilling with increased durability and service life. The core reinforcement and hardened steel body ensure maximum load capacity and significantly increased breaking strength. Perfect hold and optimum power transmission from the machine to the drill bit thanks to optimised shank. 2-stage helix - effective dust removal improves drilling performance (from 6 mm diameter and 150 mm length).