400 grit version of our 1-1/2 inch wide sanding roll. The aluminum Oxide 211K abrasive is glue bonded to a J-weight cloth backing. The J-weight backing provides excellent durability, even when rolled, twisted or folded. Use for general purpose sanding; cleaning metals prior to welding; blending and repairing metal finishes; fine sanding and polishing applications; removing rust, scale and contaminants; deburring operations by hand or by machine; surface preparation for paints and coatings. Primarily used on metal in both production and maintenance applications. Also used for general purpose work on ferrous and non-ferrous metals.