... together with pneumatic and electromotion equipments. These soft diamond tools are widely used to polish the curved surface ... 4, 5" ]Use: wet onlyDIAMOND CUTTING DISCS ELECTRO-PLATED DIAMOND GRINDING DISCS ELECTRO-PLATEDElectro-plated and Ni coatedHigh quality, long ... 15-85mmCore: 22.23mm (7/8") MULTI-PURPOSE DIAMOND CUPS ELECTRO-PLATEDElectro-plated and Ni coatedHigh quality, long lifetimeApplication ...