Crown Sierra Bimetal Ø 22 mm, Tempered Thermal, B

Measurement: Ø 22 mm. Made of an alloy of high hardness and wear resistance. Thermally tempered teeth, which gives high stability to the cutting edges. Reinforced crown base. Side holes for chip evacuation and better cooling. Ideal for making holes in mild steel, cast iron, brass aluminum and wood. Article known as wood drill bit, wood hole drill, wood saw, wood hole saw.