Diamond Drill Bits with Hex Shank Mini Drill Bits Hole Drilling for Ceramics Tiles Porcelain Granite Marble Stone
1) with Hex Shank designed, work on Driller machine 2) Diameter: 6/8/10/12/14/16/18/20/25mm 3) Use for drilling ceramic tiles, porcelain, marble, granite, dekton and so on