3M Floor Surfacing Rolls are recommended for general drum sanding. They are especially good for removing gummy finishes. This abrasive cuts fast.
3M 23242, Easy Change Floor Surfacing Sheets EC12x18-120, 12 in x 18 in, 120 grit, 7010369279
$4.00
Factory Stock, 7-10 Day Leadtime
3M Easy Change Floor Surfacing Discs feature a Hook-It II backing for easy changes and better grip on buffer pad. Discs are sharp, fast cutting, tough, and have a flexible paper backing, while offering a better value, better finish, and long life.

3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 01000, Scotch-Weld EPX 1:1/2:1 Plunger for EPX Plus II Applicator, 48.5 mL/50 mL, 7010415317
3M 29835, Sanding Screen, 80 Grit, 18 in x NH, 7100160844 
