Flap wheels are abrasion tools that are used in deburring and finishing metal work. The squared multi-abrasion flaps form a circle, and at high speeds these individual flaps scrape off bumps and imperfections on the surface. Like a sanding wheel, a flap wheel cleans jagged or rough metal, in preparation of even finer smoothing before painting. A flap disk accomplishes the same task, but with a wider abrasion surface. Zoro also has cut off wheels, wire wheel brushes, and flap discs too.