4 pieces Zirconia Alumina 3M 577F Abrasive Sanding Belts P40-P120 Knife Metal Abrasive Tool zirconia sanding belt Grit: 50# 100# 200# (Coarse

Grit: 50# 100# 200# (Coarse to Fine

Glued excellent

Installed on polishing wheel

7mm bearings installed

4 pieces Zirconia Alumina 3M 577F Abrasive Sanding Belts P40-P120 Knife Metal Abrasive Tool zirconia sanding belt Grit: 50# 100# 200# (CoarseZirconia Alumina 577F Abrasive Sanding Belts Size: 2000*75 mm Grit: P40, P60, P80, P120 ( 1 piece each grit size ) Joint type: Butt joint Feature: Excellent self sharpen, wear resistant. High heat dissipation performance, Suitable for grinding of stainless steel and high temperature tempering steel. Application: Non alloy steel: common structure steel, free cutting steel, heat treated steel, carbon tool steel etc. Alloy steel: gate steel, heat