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 for steel and iron..GC are suitable for aluminum,copper,cast iron and stone..WA and PA are suitable for stainless steel and alloy steel.Wheel diameter:3.2-50mmHandle diameter:2.35mm,3mm,3.17mm,6mm,6.35mmThe vitrified mounted point,the use of advanced formulation, ...