The Fein Pipe Polisher Set is meant for polishing prep to get a mirror finish. Includes (10) Grinding Belts 13/16"x32-1/16" 320 grit, (10) Grinding Belts 13/16"x32-1/16" 400 grit, (1) Pre-Polishing Paste Red, (1) Pre-Polishing Paste Red, and (3) Polishing Belts 13/16"x32-1/16".