DT DIATOOL Diamond Beveling Chamfer Bit 75mm for Enlarging Trimming Shaping Existing Holes of Granite Marble Porcelain Tiles,M14 Thread Cone

Package contains 1 piece 75mm diamond beveling chamfer bit. Workable length 70mm;Total Length 80mm.Chamfer angle: top angle 60 degree; Grit:#80/#100. Not for drilling holes, but designed to enlarge, shape, polish, clean, trim, finish, round or bevel existing rough holes of marble ceramic porcelain tiles granite. Diamond grit #80/100 is sharper. It helps to reduce the risk of tile cracking when under tension; Wet or dry use. Recommended machine: M14 thread ginder. Recommended RPM:6000. Max RPM:11000. Vacuum brazing technology keeps premium diamonds more firmly and durable. best work effect and longer life.