Steel wool is a bundle of very fine steel filaments, and is a long-time favorite abrasive for cleaning, polishing, and refinishing a variety of materials. Particularly popular for wood finishing. Brillo pads and other cleaning-oriented versions of steel wool are impregnated with soap. Bronze wool is a favorite of many boatbuilders as steel wool alternative for the simple reason that bronze wool won't leave behind (steel) fibers that can rust and damage wood finishes in the harsh marine environment. With bronze wool, shedding, rust and corrosion are not a problem. Both types of wool are good for sanding, smoothing, and stripping finishes.
The Norton Rapid Strip Wire brush connects to compact hand drills, works similar to bead or sand blasting. Use the Rapid Strip brush on metal, masonry or fiberglass surfaces, as it will not gouge or scar surfaces.