Files (tool)

tool used to remove fine amounts of material

thumb|Fine wood rasp thumb|Farrier using a two-sided file, double-cut on the visible side and rasp cut against a horse's hoof

thumb|Two Stanley Hand Tools|Stanley Surform planes thumb|Two Stanley Surform pocket planes A surform tool (also surface-forming tool) features perforated sheet metal and resembles a food grater. A surform tool consists of a steel strip with holes punched out and the rim of each hole sharpened to form a cutting edge. The strip is mounted in a carriage or handle. Surform tools were called "cheese graters" decades before they entered the market as kitchen utensils used to grate cheese. Surform planes have been described as a cross between a rasp and a plane.