The Bosch CYL-3 Drill Bit provides lasting performance when drilling in concrete. Its effective 2-flute U-shape design provides good dust removal, reducing friction and extending lifetime. Suitable for drilling holes for fixings in abrasive materials such as concrete and natural stones.PGM guarantee in compliance with tight tolerances, exactly drilled holes and firm hold of fixings. As proof of quality, the drill bit bears the test mark of the PGM Masonry Drill Bit Association Board, guaranteeing compliance with tight tolerances, exact drilling and the firm hold of fixings.Compatible with cylindrical shank systems for all corded or cordless impact drills.