MRK-A diamond grinding disc 1.Diameter:3"(12mm thick) 2.Grit:50#, ... #,150#,300#,500#,800#,1000#,1500#,2000#,3000# MRK-A diamond grinding disc NO.PictureDescriptionDiameter(inch)Thickness(mm)Grit size available1MRK ... gloss in a short time,as compared with conventional polishing wheel.3)Suitable for the grinding process of the curved or ...