For use on masonry and concrete. Grooved and notched carbide plate penetrates material more easily and prevents jamming in concrete. Features Activeteq centring tip, enabling easy starts without jarring or wandering and keeping the drill in place for a precise hole diameter. AWB brazing and hardening technology reduces vibration for comfot during use. Visible wear mark indicates if the diameter of the hole is still in tolerance for metal anchor setting. Made in Germany. Suitable for use with rotary hammers with SDS plus holders.