Get a fast cut and long disc life with our 3Mâ„¢ Hookitâ„¢ Clean Sanding Disc 900DZ. Resin-bonded to a light and flexible J-weight cloth backing, 900DZ's premium ceramic grain slices through steel and resists loading on soft woods and metals. An anti-static treatment and our proprietary clean sanding design help to provide exceptional dust management tools, backed up by our clean sanding accessories.