3M Microfinishing Film Sanding Belts 15 Micron, 600 Grit Can be used wet or dry. Suitable for both lapidary and metalworking applications. Fast-cutting silicon carbide and aluminum oxide abrasives are resin-bonded onto a flexible film backing. Your finishes will be uniform and precise. These sanding belts have a belt size of 18 15/16" x 1 1/2" and a drum size of 6" x 1 1/2". One belt supplied.
The 60, 30, 15, and 9 micron belts have grits of 220, 400, 600, and 1200 respectively.