In 1969, the Swedish Sandvik steel made by chemical vapor deposition, the production of titanium carbide coated carbide inserts patent. In 1972, the United States and 拉古兰 邦沙 developed physical vapor deposition method, carbide or high speed steel tool surface coating of titanium carbide or titanium nitride hard layer. Surface coating method of the base material of high strength and toughness, and high surface hardness and wear resistance combine to make this composite material has better cutting performance.

Tool in the form of the workpiece surface can be divided into five categories. Processing of various outer surface tools, including turning, planing, milling cutters, broaches and the outer surface of the rasp and the like; hole processing tools, including drills, reamers, boring tools, reamer and the inner surface of the broach etc; thread processing tools, including Taps, Dies, automatic opening and closing of the thread cutting head, thread turning and thread milling cutters; gear cutting tools, including hobs, shaper cutters, shaving cutters, bevel gears processing tool; cutting tools, including inserts tooth circular saw blades, band saw, bow saw, cutting tools and saw cutter and so on. In addition, there is a combination of tools.

Press cutting movement and the corresponding blade shape, the tool can be divided into three categories. Common tools, such as turning, planing, milling (excluding turning forming, shaping and molding planer mill), boring tools, drills, reamers, reamers and saws; forming tool, such tool blade section with the workpiece having the same or nearly the same shape, such as forming tools, forming planing, shaping cutters, broaches, tapered reamer and various thread processing tool; develop into a tool is generating method of processing gear tooth surface or the like of the workpiece, such as hobs, shaper cutters, shaving cutters, bevel gear and bevel gear planer cutter and so on.