IRWIN Tools 1900836 Concrete Screw Drive Sleeve Compatible with Impact Performance Series and Drills<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Drill/drive installation sleeve slides over and engages with drill bit hex collar</li><li>Compatible with all IRWIN Impact Performance Series Tapcon Installation Bits as well as most standard SDS Hex Drive Bits</li><li>Manufactured with heavy-duty， cold-forged steel to withstand high torque output</li><li>Black oxide finish resists corrosion and increases life of sleeve</li><li>1/4" quick-change shank is designed to work with impact drivers， and reduces slipping in standard drill chucks</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31fEe4cLwJL.jpg" noproxy>