A broad steel file with a coarser tooth pattern, hafted in wood, used by blacksmiths and armorers to true edges and smooth rough castings. The file’s work hardens with use; a dull file will skate off the metal rather than bite, so craftsmen periodically dress the teeth with a small hammer and punch. A master’s file bears the weight of innumerable strokes.
File, metal
Broad coarse-toothed steel file hafted in wood; blacksmiths use to true edges.