3M Wet or Dry Sandpaper uses sharp silicon carbide grain on a waterproof backing, so you can sand wet to flush away swarf or dry for fast cutting. The Assorted pack covers a range of grits in one bundle - convenient for a single project or for keeping a few sheets of each grit on hand without committing to a full pack of any one grade.

• Silicon carbide grain - sharp, fast-cutting, smooth finish
• Waterproof backing for wet sanding; reduces clogging and dust
• 9" x 11" full sheets - tear into thirds or quarters for pad sanders
• Between-coat sanding for varnish, paint, and clear finishes
• Mix of grits for full coarse-to-fine progression in one pack
• 5 sheets per pack

Tip: Work coarse-to-fine in order and never skip a level - jumping from coarse straight to fine leaves scratches the fine grit can't remove and they show up under topcoat.