Diamond cutting tool has high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low thermal expansion coefficient, and non-ferrous metal affinity of small advantages. Can be used for Nonmetal Hard and brittle materiaUltra fine grain cemented carbide substrateCVD diamond coatingSuitable for aluminum alloy and graphite processingUsing a newly developed ultra-fine crystalline diamond coating technologyProcessing life than uncoated cutting tool is improved by more than 20 timesMain applications : high speed machining graphite, aluminum alloy, copper and other non-ferrous materials.