3M Pro pak Wet or Dry abrasives are specially designed for wet or dry sanding. Use 3M Imperial Wetordry Sandpaper for a premiere finish on lacquers, primers, sealers, plastics and paints. For final or between coats sanding.
3M 99420, Wetordry Sanding Sheets 99420NA, 9 in x 11 in, 400 grit, 7000126424, 25 sheets per pack
$16.99
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.

Insize 0130-L110, LIGHT METER (BASIC TYPE), 6974029776564
Dynabrade 92206 1/8" W x 12" L 80 Grit A/O DynaCut Belt , 50/pack
3M 07415, Hand Sanding Wood Finishing Pad 7415NA, 4.375 in x 11 in, Gray Fine, 7010383728 
