First, the dimensional accuracy of the shape requirements are not high, the blade shape simple ordinary tool, the user through the ordinary tool grinding machine hand grinding grinding edge, this grinding method is characterized by grinding master's high requirements, must have a certain tool knowledge , The grinding tool after the general can only be used for roughing; First, complex shape and dimensions require a high precision of the overall tool, the user usually used the tool commissioned by the tool manufacturer or local tool repair grinding machine to re-grinding Processing, this grinding is characterized by the tool grinding process is through the editing process and the precise positioning of the probe, according to the original tool design parameters and geometric angle grinding, grinding finished the performance and life of the tool can reach the new More than 90% of the knife. Users can choose according to the different requirements of the use of the above two methods of grinding and grinding of the tool can save the use of carbide raw materials to reduce the use of the cost of the tool. So the grinding and grinding of the tool is both economical and environmentally friendly with high economic value and social value.