These have a specially designed shank which enables them to fit into any machine with an SDS Max Chuck.

These are generally large and powerful machines and the special SDS Max design ensures there is no slippage.

All these drill bits have a special L shaped flute profile for increased dust evacuation.

Drills of 15mm diameter and above have four cutting edges.

Size. 20mm

Working length 200mm

Overall length 320mm.