3M Scotch-Brite non-woven sanding disc set. Comes with the following: 5 in Coating Removal Disc, Hookit Disc Pad Holder PN18444. 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 sanding disc set can be run at a maximum speed of 10000 RPMs.