3M 3M Scotch-Brite Non-Woven Aluminum Oxide Aluminum Surface Conditioning Quick Change Disc - Coarse Grade - 4 in Diameter - 54120 61500313178

3M Scotch-Brite non-woven aluminum surface conditioning quick change disc uses aluminum oxide as the abrasive material and has a diameter of 4 in. Since this product is non-woven, grade is generally used to describe the abrasiveness; with the 54120 having a coarse grade. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M aluminum surface conditioning quick change disc can be run at a maximum speed of 12000 RPMs.