DEWALT DW5706 1/2-Inch by 22-Inch by 27-Inch 2 Cutter Spline Shank Rotary Hammer Bit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>ROCK CARBIDE® tip maximizes carbide surface contact for longer bit life</li><li>U-Flute cleans debris out for fast， efficient drilling</li><li>Open head design channels dust into flutes for quicker drilling.</li><li>For use with all brands of spline rotary hammers</li><li>Used for drilling anchor and through holes in poured concrete and other masonry up to 2" diameter</li><li>ROCK CARBIDE tip maximizes carbide surface contact for longer bit life.</li><li>U-flute cleans debris out for fast， efficient drilling.</li><li>Open head design channels dust into flutes for quicker drilling.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ECFDTxDDL.jpg" noproxy>