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
$4.23
This item has been Discontinued.
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.

Standard Abrasives 714179, Aluminum Oxide Handy Roll, P240 J-weight, 1-1/2 in x 50 yd, 7100050575
3M 29902, Sanding Screen, 150 Grit, 12 in x 18 in, 7100160763 
