3M Wetordry sandpaper cuts fast and smooth, and it can also be used to repair surface defects. It can be used with water or cutting oil. Ideal for sanding metal for repainting or prior to primer coat.
3M 09087, Wetordry Sanding Sheets 9087NA, 9 in x 11 in, 220 grit, 7010383682, 5 sheets per pack
$2.99
Factory Stock, 7-10 Day Leadtime, Priced Per Pack
3M Wetordry allows you to sand between coats of varnish and paint or other finishes. Can be used with water to reduce clogging and extend abrasive life. Ideal for sanding metal for repainting or prior to primer coat.

3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 20278, Clean Sanding Soft Interface Disc Pad, 5 in x 1/2 in x 3/4 in Multihole, 7100006170
3M 20353, Hookit Clean Sanding Low Profile Disc Pad, 5 in x 3/8 in x 5/16-24 External 44 Holes Red Foam, 7100037832
Standard Abrasives 32905, PSA A/O Disc, 706487, 1 in x NH, 120, 7010331819
3M 05865, Hookit Clean Sanding Dust Free Disc Pad, 6 in, 7000028238
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
3M 98514, Premium Matte Cloth (Gaffers) Tape GT2, Black, 48 mm x 50 m, 11 mil, 7010336132 
