Tool is a tool for cutting machinery manufacturing, also known as cutting tools. The cutting tool includes both generalized tools, including abrasive.

The vast majority of machine tool is used, but there are also hand used. Because the tool used in machinery manufacturing basically used for cutting metal materials, so the word "tool" to be understood as general metal cutting tools. Cutting wood with a tool is called woodworking tools.

Development tool plays an important role in the history of human progress. China as early as in the first 28 to 20 century BC, had already appeared brass and copper cone cones, drill, knives and other copper knives. Late Warring States period (third century BC), mastered the carburizing technology, made copper knives. Then drill and saw, with a modern flat drilling and sawing have some similarities.

However, the rapid development of the tool is in the late 18th century, with the development of the steam engine and other machines from the. In 1783, France's Le first system within the cutter. In 1792, the British made the Maudslay taps and dies. The earliest documented about the twist of invention in 1822, but until 1864 only as a commodity production.