A gear cutting machine is used for crating gears. A gear cutting machine is a machining tool used for cutting gear racks, gears, and worm gears. It is also used to make spur, herringbone gears, and helical gears. Cutting operations is a substitute to forming processes, such as extruding, forging, sand casting, and investment casting. Gears are commonly made from plastic, metal, and wood. Various plastic and metal gears are made without cutting, by operations such as injection molding or die casting. Gear cutting is a large industry. It is primarily used for fine finish, to rough out & finish gear teeth, round off the ends of gear teeth, and to fit gears. The automotive industry accounts for the largest share of the gear cutting machines market and is estimated to lead the overall market in the coming years. The automotive industry is the major consumer of machine tools such as gears. The evolution of the automotive industry in developing countries such as China, Japan, ...