Manufacturer Reference: 530566 Applications: Natural Stone Beton. Solid brick. Hollow and perforated, whether in Céramic or silico-limestone. Rotation drill and/or percussion Quick and sound punching. For drills on a stick, it is advisable to reduce the working lathes. Technical features: U-shaped helix carbide pad Long version BL Clamp handle lowered to 12.7 mm for drill diameter 13 and above.