Combination drill and tap bit set RUIMI metal deburr countersink drill bit 1/8''-3/8''<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Hex Shank HSS Drill Bit &amp; Screw Tap of Imperial Unit</li><li>Made from hardened high-speed steel vs carbon steel for longer life</li><li>Back tapered beyond tap to prevent thread damage from over-drilling</li><li>Deburr/countersink also provided on bit beyond back taper</li><li>Complete hole drilling， tapping， deburring and countersinking in one operation with power drill saves labor &amp; time</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51xzUovkGeL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51hwYYhzX9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51pNwEnZjrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51C5Mm97czL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Vs4ZF8TVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41q1tkT6FKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31wDKbu9TDL.jpg" noproxy>