uxcell 12mm 1/2" Diamond Tipped Metal Hole Saw Drill Bit for Ceramic Tile Glass
Diamond coated tip and sturdy metal body, gives good performance and longer life.Designed for drilling 1/2inch diameter holes.Used on glass, ceramic, porcelain, tile, limestone, slate, marble, granite, stone, and fiberglass.Works better with an electric drill which is not included here.