3M Floor Surfacing Rolls are recommended for general drum sanding. They are especially good for removing gummy finishes. This abrasive cuts fast.
3M 09318, Regalite Floor Surfacing Rolls, 12 in x 50 yd, 752I, 50 Grit, 7010339987
$339.53
Factory Stock, 7-10 Day Leadtime
3M Floor Sanding Rolls offer great productivity and value on bare wood or nongummy finishes. They cut faster, run cooler and last longer than conventional rolls. The rolls feature the familiar purple Regalite mineral and tough paper backing.

3M 02126, Extra Large Angled Drywall Sanding Sponge 910-DSA, 2-7/8 in x 8 in x 1 in, 7010375246
3M 99436, Drywall Sanding Screens, 4-3/16 in x 11-1/4 in, 220 grit, 7000047623, 10 sheets per pack
Standard Abrasives 701616, PSA A/O Disc, 12 in x NH, 50, 7010369977 
