Bosch AN01-C Quick Change Adapter for Hole Saws， 9/16-Inch to 1-3/16-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Works with the new Bosch quick change hole saws， allows you to use quick change mandrels with hole saws from 9/16" to 1-3/16" in diameter.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31NEpPWl5SL.jpg" noproxy>