DeWALT DW5228 Hammer Drill Bit, 5/16 in Dia, 6 in OAL, Percussion, 4-Flute, 5/16 in Dia Shank, Flat Shank

Power through masonry, concrete, rock and more with DeWALT® hammer drill bits. Featuring rock carbide tips that maximize surface contact for extended bit life and a 4-flute design that cleans debris while you work. Three flats on the shank eliminate bit slippage.