DEWALT DW5249 Hammer Drill Bit, 1 in Dia, 12 in OAL, Percussion, Spiral Flute, 4-Flute, 1/2 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. For commercial shutters, electricians, gutters, general contractors, mechanical contractors, railings and duct work installation Features: - Two cutter carbide tip maximizes carbide surface contact for longer bit life - Three flats on shank eliminate bit slipping in chuck - Four flute design cleans debris out for fast, efficient drilling