ITW BRANDS 11248 3/16x4-1/2-Inch Concrete Drill Bit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Concrete drill bit</li><li>Ensures the precise drilling of pilot holes when installing anchors</li><li>Coated in climaseal to provide corrosion resistance</li><li>Drills in harder concrete and produces fewer head snaps</li><li>Highly durable， crafted with steel</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41WWAA3qxcL.jpg" noproxy>