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 02405, Utility Cloth Sheet 211K, 9 in x 11 in 220 J-weight, 7010299775
ACS CX1250 Diamond Belt, 1/2" X 24" 20u
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 69604, Cloth Belt 777F, P120 YF-weight, 1/2 in x 12 in, Film-lok, Single-flex, 7010328597, 200 per case 
