1. Made from high quality stainless steel blanks,coated selected diamond        
2. Double sided and Single sided        
3. 19mm diameter,22mm diameter and 30mm diameter are available
4. Four diamond grits:Coarse(Green Code),Medium(Blue Code),Fine(Red Code) and Extra Fine(Yellow Code).        
5. Nearly 3o ISO standard types,and all diamond discs are available both in unmounted and mounted