DEWALT DW5813 3/4-Inch by 31-Inch by 36-Inch 4-Cutter SDS Max Rotary Hammer Bit</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Innovative tip design maximizes carbide surface contact for longer life.</li><li>Open head design allows mill to easily enter the flutes for faster drilling.</li><li>Longer helix expedites mill removal from the hole for faster drilling.</li><li>Hardened core reduces bit breakage. Hardened core reduces bit breakage.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/21M26XG93ML.jpg' noproxy></br>