3M 9" x 11" sanding sheets. Fast cutting silicon carbide delivers exceptional finishes. Load-resistant coating and open coat construction minimize loading for better finish and longer abrasive life. Silicon carbide is ideal for general purpose sanding on wood, metal, plastic, dry wall, fiberglass, glass and ceramic. Light A-weight paper backing has excellent conformability. 320 grit, light gray in color.

10-2015 405N HAS BEEN REPLACED BY 405U

A-WEIGHT, SILICON CARBIDE