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 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 62611, Scotch-Weld Threadlocker TL62, Red, 250 mL Bottle, 7100039195, 2/case
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
Standard Abrasives 701656, Cartridge RoII Mandrel, 3/16 in x 2 in x 1/4 in x 1-1/4 in x 4 in CM-18, 7010368730 
