Johnson Abrasives Screen-Kut Mesh Sanding Sheets (180 Grit, 4-3/16in x 11-1/4in, 25pk) features a sharp silicon carbide abrasive on an open mesh backing made for sanding plaster and drywall joint compounds. The die-cut sheets have a 10-1/4in bias cut for aggressive action without groove lines. This is the cleanest screen on the market.