Four-channel helix allows for the best possible drilling progress through simultaneous discharge of the drill dust via four large helix channels.

Centre point ensures precise, pinpoint starting.

Specially machined shaft end maximizes impact energy throughput.

Multicutter head features two additional cutting edges that flank the central HM bit plate, providing very smooth running and constant borehole geometry with optimal advance performance. Additionally, HM elements are deeply embedded by high-temperature copper brazing to guarantee maximum break-out resistance.

Application examples: For circular and exact dowel holes from 16mm to 30mm.