Bosch BlueGranite Turbo™ carbide hammer drill bits deliver 5X life and 2X speed over standard masonry bits, resulting in increased on-the-job productivity. Each bit delivers an aggressive hold in the hammer drill achieved with the power grip shank. The bit features an upgraded four-grind head, delivering additional cutting angles for faster drilling. The multi-grind centering tip also provides for precise starts in masonry, block and concrete.