file

2 ENTRIES FOUND:

file

In hardware and metalworking, bar- or rod-shaped tool of hardened steel with many small cutting edges raised on its surfaces. Files are used for smoothing or forming objects, especially of metal. A file's cutting or abrading action results from rubbing it, usually by hand, against the workpiece. The single-cut file has rows of parallel teeth cut diagonally across the working surfaces. The double-cut file has rows of teeth crossing each other. Rasp teeth are disconnected and round on top; rasp files are usually very coarse and are used primarily on wood and soft materials.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on file, visit Britannica.com.

Seen & Heard

What made you look up file? Please tell us what you were reading, watching or discussing that led you here.