Trademark: RX4 Metal content: 99.96 impurity content: 0.4 Uses: It has excellent machining results, have the perfect cutting performance and can be used in medical devices, tungsten - chromium - cobalt alloy for extremely precise cutting surface can well meet the requirements. Must avoid vibrations. Polycrystalline cubic boron nitride for cutting high hardness of hardened steel and hard cast iron, etc.; polycrystalline diamond for cutting non-ferrous metals and alloys, plastics and glass and steel; carbon tool steel and alloy tool steel now only for rasp, die and tap tool.