Wurth 1-Sided Aluminum Oxide Sanding Sponges, 5-1/2" x 4-1/2" x 3/16", 100 Grit, (Blue) | Medium, Purple | 058708991096120

- Ideal use is for surface preparation on metal and wood utilizing a drill - For a coarse finish on metal or wood - Nylon brushes maintain shape, don't rust, don't spark and don't shed metal bristles - Wheel brush design for spot and corner surface preparation - Max RPM 4500 - For use in a Driver-Drill