Grinding wheel /grinding stone Abrasive:A ,WA,PA,,GC Grit NO.:46#,60#,80#,100#,120#,180#,220# wheel diameter:3.2--50mm .A is suitable ... of advanced formulation,manufacturing well- made with good wear resistance,grinding power.Installed in the mill,such as electric power tools ... ,all kinds of molds,parts,chamfering,precious stones ,jade processing abrasive polishing. Grinding stone /grinding wheel