5Pcs Ceramic Tile Glass Triangular Drill Bit Set Alloy Head 3-10mm Drill tool. Durable and longer life Spear pointed design reduces breakout. size:3/4/6/8/10mm with Hex Shank for Ceramic Tile Marble Mirror&Glass. Applicable to ordinary hand electric drill or bench drill.. Suitable for drilling in ceramics, glass, granite, ceramic tile and brick wall, etc..
