diamond cutting disc: divide,separate,fabricate,contour,shape of ... Suitable composite kits with silicon polish, carbide burs and sintered diamond burs; Moulded ShapeUsageA / Amsolid disc;for ceramics, gold ... Bmperforated disc, 8 holes, in standard diamond grit;for rough pre-cutting, separating and contouring of ceramics, model preparation ... com. 22mm 8 holes perforated standard grit diamond cutting disc