If other conditions remain unchanged, the sharp tip of the blade will often bring toughness decline. With the development of tool technology, we can make up for it through other means, in order to better take into account tool wear resistance and toughness. In such a moment, the tool material of fine particles has become one of the options we have, although fine particles of the tool may be price than existing technology tool a higher price. Kennametal to a metal material that 62 HRC in the milling hardened materials, fine particle processing 25 min KC635M Carbide Tool Wear and ultrafine particles KC637M processing 70 min Carbide Tool Wear rather to illustrate the machining of hard materials , ultrafine particles than the wear resistance of Carbide KC637M fine carbide KC635M nearly three times higher.