A Fitter is a trades person who machines using hand tools and machine tools to create or modify a part that is made of metal, plastics, or wood, although plastics or wood machining is rarely manufactured by machinists as those materials require lesser skill and almost all the work performed by a machinist is done on metal. A machinist is to metal what a carpenter or cabinet maker is to wood.
A traditional Fitter is one who can operate, disassemble, reassemble and repair the machine tool as well as build new parts such as gears, splines, and shafts using various machine tools such as mills, lathes, grinders, and planers.
Mass-produced parts of machines are more common today, but still require machinists and millwrights to calibrate and install machine parts to manufacture other parts. In many parts of the economy, however, custom-made parts are required for various uses. A machinist may work on manufacturing something simple like a motorcycle frame part, a piece of an internal combustion motor, or something extraordinarily complex, such as pieces of submarine engines accurate to 2 micrometers.
Good Fitter are highly sought after and respected skilled trades persons and are generally well-paid. In utility and military use companies, experienced machinists can earn over $100,000 per year.
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