Steel File

Dust flies as the file forces its hardened teeth into grainy faces that fall away and fold in the wake of wrenching vibrations, sent along the valleys of their most porous places. The workman sweats and scrapes his tools together in furious fashion as he makes waste of the old in order to create the new. The word "file" most commonly refers to the hand tool style, which takes the form of a hardened steel bar with a series of sharp, parallel ridges, called teeth. Archaeologists have discovered rasps made from bronze in Egypt, dating back to the years 1200 - 1000 B.C. Machining in the mid 19th century was heavily dependent on filing, because milling practice was slowly evolving out of its infancy. This sound uses the following sound file from Freesound (http://www.freesound.org): steel_file_lorenzo.mp3 by vhsvhs