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A rotary file of hard alloy for iron and other metals.There is a saying that there is no diamond do not get porcelain live hard alloy rotary file,
Diamond is the hardness of the highest material at present 10 mohs hardness can be used for processing ceramic carbide rotary file.The hardness of tungsten steel after heat treatment is a high cemented carbide rotary file, but that is a rotary file relative to carbon steel cemented carbide.
Diamond grinding head
Hard alloy rotary file, if say tungsten steel hardness is high over ceramic hard alloy rotary file, say to go out not to smile the person big tooth drop hard alloy rotary file.
Diamond is not a hard metal rotary file.Currently, there is no rotary file with metal hardness greater than that of ceramic carbide.