The semi -automatic and automatic equipment is more expensive. It is more suitable for the commercial sphere, as it allows flow to be carried out with the production of many of the same parts of the same. The principle of operation of any such machine is based on the processing of parts with a cutting tool. The workpiece is fixed in the cartridge, where it constantly rotates, and the tool processes it with a cutting edge, gradually removing the layer of metal until it gives the desired shape.















