Zenith Industries ZN103003 9/16" Diameter x 1" Depth of Cut HSS Annular Cutter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Made with high moly tool steel for long life</li><li>Multiple cutting edges provide faster cut rate with reduced loading</li><li>3/4 in Weldon shank allows use with most magnetic drills</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41L1xKlZ4BL.jpg' noproxy></br>