ROCK CARBIDE tip maximizes carbide surface contact for longer bit life. * U-flute cleans debris out for fast, efficient drilling. * Open head design channels dust into flutes for quicker drilling. * ROCK CARBIDE® tip maximizes carbide surface contact for longer bit life * U-Flute cleans debris out for fast, efficient drilling * For use with all brands of spline rotary hammers * Used for drilling anchor and through holes in poured concrete and other masonry up to 2" diameter