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 ... iron and stone..WA and PA are suitable for stainless steel and alloy steel.Wheel diameter:3.2-50mmHandle diameter:2.35mm ... ,globoidal,cone,such as special surface grinding cutting ,repaire.but also a varity of metal materials processing,clean-up cast,forge,weld ...