For ceramics & metalsHP Sintered Diamonds burs with metallic binder (ISO 807.104) The Solid Sintered Diamond burs (SSD) are superior in grinding power & longevitycompared to standard sintered diamond instruments. The worldwide program inshapes and grits covers all needs for grinding metals and ceramics. Grit TypeISO GritColour CodeApplicationSuper Fine503YellowCeramic & MetalFine513RedCeramic & MetalMedium523NoneCeramic & Metal & GoldMedium - Coarse532Light BlueCeramicMedium - Coarse533Dark - BlueMetalCoarse542GreenMetalSuper Coarse543BlackMetal