Use with your drill to remove paint and rust from wood and metal surfaces. 3M paint and rust stripper 7772ES, 4 in, open stock, one. For use on wood, metal, plastic or fiberglass. Cleans rusty surfaces with a double thick edge to strip quicker. Features Scotch-Brite abrasive web that won't rust or splinter like wire brushes. Conforms to surface contours, reduces gouging and leaves a smooth paintable surface. Fits all standard household drills: 1/4 in, 3/8 in and 1/2 in. Use as a rotary disc (on face) or as a brush (on edge).