Starrett XA2 Quick-Hitch Arbor with Carbide Tipped Pilot Drill<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Carbide tipped pilot drill</li><li>Fits hole saws from 1 1/4" to 8 9/32"</li><li>7/16" Hex shank for use in 1/2" chucks</li><li>Quick-Hitch arbors enable instant change outs of hole saws without additional tools and without removing the arbor from the chuck</li><li>Set screw in body allows for easy replacement of the pilot drill</li></ul></div><img src="http://ecx.images-amazon.com/images/I/419rY2vy41L.jpg" noproxy>