3Ms Aluminum Oxide Abrasives are made of high-grade mineral and a bonding system that reduces shelling of the mineral. These economical abrasives are excellent for fast clean-up and pre-polishing work. 

10-Packs of Aluminum Oxide Bands available in 60, 80, 120, and 220 grit
Use the Sanding Bands with 3/32" (2.35mm) and 1/8" shank rubber drum mandrels. To install, slip band onto rubber drum with screw loose. When band is in position, tighten the screw, which expands the rubber drum, for a secure hold.
*Optimum Operating Speeds are much lower (between 25%50% of maximum speeds) and also depend on the type of workpiece.