In order to extend tool life or increase their work efficiency and improve surface friction conditions is particularly important, so how much more efficient application of cutting material appears. Thin CVD coating and PVD coating on the tool surface has greatly improved the performance of the role, until now this effect is far from exhaustive. The use of modern analytical techniques, can be clearly observed in the microstructure of the tool surface, to better optimize the role play. The surface structure of the tool through a predetermined program process to achieve, can now be designed according to the functional optimization tool performance. The most common treatment method for surface modification of surface coating materials. By the high hardness of the metal carbides, nitrides, and composite oxides can be adjusted performance of a single compounds, especially in improving wear resistance, oxidation resistance and wear, adhesive wear and diffusion wear such capability. Of course, other materials introduced into the surface (such as by injection) can also have a lasting impact on the surface properties of the material. Adhesion mechanism between the chip and the tool in addition to the mechanical occlusion, mainly for the friction. Through a material modification method - soft coating deposited on the surface of the tool - one can effectively improve the tribological properties. The surface treatment can also be modified in terms of morphology, such as by polishing or roughening the purpose (to form the lubricating oil grooves) to achieve. Polishing is a traditional, by mechanical means to reduce the friction of a particular lubricant is applied to the cutting area without the cutting tool, in most cases, polishing is an effective way to reduce friction.