Drill head design for increased durability, drilling speed and service life thanks to aggressive head design with flat, wear-reducing cutting edges. The 160° drill head cutting edge design enables even better spot drilling with increased resistance and durability. Core reinforcement and hardened steel body ensure maximum load capacity and significantly increased breaking strength. Perfect holding and optimum power transmission of the machine to the drill bit thanks to optimised shank. The 2-stage helix effectively removes dust and improves drilling performance (from 6 mm diameter and 150 mm length).