Extra-long durability when drilling concrete and stone. Bosch "in-house" carbide blend combined with diamond-ground cutting edges makes the bit extremely wear-resistant. 2-flute vario design with a short, variable incline provides good dust removal, wear reduction and notably reduced friction on the flute from drilled material. Also features Bosch Power Grip Shank System enabling 100% power transfer from machine to drill bit, allowing direct use of power for drilling with no power loss and thus less wear. For use when drilling holes for fixings in concrete, natural and artificial stone. Compatible with cylindrical shank systems for all corded or cordless impact drills.