The wire shaving process produces fibers that have geometric cross sections. The result is that each metal wool fiber has several long, sharp cutting edges. Unlike sandpaper and other grit-based abrasives that scratch away material with sharp points, metal wool fibers perform like thousands of microscopic scrapers or planes on a surface. The result is a smoother surface after sanding and a better result after finishing. Fine metal wools are even used to clean glass and polish fine wood articles. Heavy duty paint stripping Uniform, high quality metal strands Polishing and buffing out a fine wax finish Flexible to reach in and around corners Prepares surfaces between coats of varnish