DT DIATOOL Diamond Finger Bit 20mm Vacuum Brazed Milling for Enlarging Holes in Tile Porcelain Marble Ceramic Granite

1 piece 20mm vacuum brazed diamond finger bit Diameter: 20mm; Diamond Height: 50mm; Total Length: 65mm; Grit:#50/60; M14 Thread for Angle Grinder Dry or wet for enlarge, shape and/or round bevel existing holes in porcelain, hard ceramic, marble, granite, tile, stone, countertop Also available to make a hole directly, but not recommend to do it Vacuum brazed technology provide high efficient working performance and much longer life than electroplated ones, Manufacturer: DT-DIATOOL