Grade: K2000 Hardness: 1980 Bending strength: 4500 Density: 14.5 Usage: Almighty grades for applications that require high-performance processing fields. Tungsten steel due to high temperature, high pressure, high speed, and working in a corrosive fluid medium parts, its application more and more difficult to machine materials, cutting the level of automation and accuracy of processing become increasingly demanding. Chang Tuo To accommodate this, the development direction of the tool will be to develop and apply new tool materials; further development of the tool vapor deposition coating technology, high strength high toughness matrix coating deposited on a higher hardness and better tool material solution to the conflict between hardness and strength; further development of the structure of indexable cutting tool; improve tool manufacturing precision, reducing differences in product quality, and to achieve the optimal use of the tool.