DEWALT DW5209 Drill Bit Premium Percussion Carbide Bit， 5/32-Inch By 3-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Can be used on Concrete or rock</li><li>Used primarily to drill holes for mechanical anchors. Fit into standard 3/8-Inch and 1/2-Inch chucks</li><li>Unique flute design efficiently removes dust and reduces binding</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31-u76iFbeL.jpg" noproxy>