3M 3M Scotch-Brite 7447 Pro Non-Woven A/O Aluminum Oxide AO Hook & Loop Disc - Very Fine Grade - 6 in Diameter - 77143 61500301769

3M Scotch-Brite non-woven 7447 Pro hook & loop disc uses A/O aluminum oxide AO as the abrasive material and has a diameter of 6 in. Since this product is non-woven, grade is generally used to describe the abrasiveness; with the 77143 having a very fine 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 hook & loop disc can be run at a maximum speed of 12000 RPMs.