resin-bonded soft disc 1.rough trnding 2.fine grinding diameter(inch)diameter(mm)grit38060#(80#),150#,300#,500#,1000#,2000#,3000#(polisher)4100/10560#(80#),150#,300#,500#,1000#,2000#,3000#(polisher)513060#(80#),150#,300#,500#,1000#,2000#,3000#(polisher)