3M 346I Production Sandpaper Sheet – 80 Grit Aluminum Oxide, 9″ x 11″, Durable Industrial Grade

The 3M 346I Production Sandpaper Sheet is a high-performance solution for fast and aggressive sanding. Featuring tough 80 grit aluminum oxide abrasive, this 9″ x 11″ sheet is built for heavy-duty stock removal, paint stripping, and surface leveling on wood, metal, and composites. Designed for industrial use, it delivers consistent cutting action and long-lasting durability, even under pressure. The heavy D-weight paper backing offers excellent strength and tear resistance, making it ideal for machine or hand sanding in demanding environments. Whether you’re tackling rough wood prep, rust removal, or initial shaping, the 3M 346I Production Paper is a reliable choice for professionals and workshop use where performance and efficiency matter most.