The 3M 6" x 60" 40 Grit Coated Aluminum Oxide Coarse Abrasive Belt features aluminum oxide abrasive with a 40 grit coarse grade for sanding and surface preparation applications. The belt has a tube-shaped design that fits both inner and outer contours. It includes an X-weight cloth backing and a resin bond construction. This belt is designed for use with a rubber expander wheel attachment (sold separately) compatible with die grinders or rotary drills. It is intended for dry sanding operations, including shaping, stock removal, and general surface preparation tasks.