Black &amp; Decker 16902 Glass/Tile Drill Bit， 1/4-Inch by 2-1/4-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>High quality carbide tip provides maximum durability</li><li>Unique design prevents cracking of material</li><li>For use with cordless or corded drills</li><li>Specially designed for drilling a variety of glass &amp; tile materials</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41F5CamPYsL.jpg" noproxy>