A machine tool is a powered mechanical device, typically used to fabricate metal components of machines by machining Conventional machining, one of the most important material removal methods, is a collection of material-working processes in which power-driven machine tools, such as lathes, milling machines, and drill presses, are used with a sharp cutting tool to mechanically cut the material to achieve the desired geometry. Machining is a part of the, which is the selective removal of metal. The term machine tool is usually reserved for tools that used a power source other than human movement, but they can be powered by people if appropriately set up. Many historians of technology consider that the true machine tools were born when direct human involvement was removed from the shaping or stamping process of the different kinds of tools. The earliest lathe with direct mechanical control of the cutting tool was a screw-cutting lathe dating to about 1483.[1] This lathe "produced screw threads out of wood and employed a true compound slide rest".

The first machine tools offered for sale (i.e. commercially available) were constructed by one Matthew Murray in England around 1800.[2]

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