Hitachi 728024 9/32-Inch Diamond Core Bit</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Glass and tile bit measures 9/32-inches in diameter</li><li>Drill bit drills through glass， marble， class 5 porcelain， granite and slate</li><li>Constructed of hardened and tempered thin wall alloy steel</li><li>Requires water lubrication during use</li><li>Comes with a 30-day limited warranty</li><li>9/32" Diamond Core Bit</li><li>Drill through Porcelain， Marble， Slate and Glass</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/413Ej3F3oeL.jpg' noproxy></br>