DEWALT DW2301 1/4-Inch and 3/8-Inch Chuck Key with 15/64-Inch Pilot<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Shock resistant tool steel</li><li>Advanced hardening process</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31368r0%2Bg0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21C1JqinDXL.jpg" noproxy>