DEWALT DW5229 Hammer Drill Bit 5/16 in Dia 12 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.