kwb hss m2 hardhoutboor met verstelbare dieptestop enThe KWB HSS M2 Hardwood Drill Bit with Adjustable Depth Stop and 4mm Countersink is ideal for pre drilling hardwood when installing patios or other wooden garden features. The drill bit features a depth stop with a ball bearing to prevent grooves from forming on the wood surface. 1 4" hexagon shank according to ISO 1173, E 6. 3 Suitable for bankirai, hardwood and softwood Adjustable depth stop 4mm countersink Ideal for even drilling and countersinking