... of normal abrasives.Specifications: TypeSpecificationGritsPhotoDiamond Fickert (Magnesia) L:140MML:170MM8#--1500# Diamond Fickert(Buff Polishing)L:140MML:170MMBuffColor: Black ... , White,Brown and Green Diamond Fickert(Metal Bond)L:140MML:170MM30#, 40#, 50#, 60 ... #, 80#,120#, 170#, 280# Diamond Fickert(Resin Bond)L:140MML:170MM120#, 180#, 240#, 320#,400 ...