This set includes small saws 22, 25, 32, 35, 44, 50 each, with a rodMetal Saw (coarse teeth): The cutting edge is located around the outer wheel and is used to cut or cut narrow grooves. Process characteristicsThe grains (carbides) in the microstructure are refined by the pneumatic hammer of multiple forging, so that the super red hardness and wear resistance of the metal can be better. The super fatigue crack resistance of high-speed steel is developed at high rotation speed. Thus prolonging its service life and finally achieving the goal of saving time and energy waste for customers. Processing technology feature of NC machine tool is used to grind the surface of the blade repeatedly, so that the surface finish can reach a high standard. At the same time, imported micro-digital control machine tools are used to cut blades (triangular edge and radial edge), and the products reach the same level of the national leading level. Heat treatment process: High speed saw blade: usually w1205-1215 Salt bath quenching at °c, tissue metallographic level quenching10 - 11Stage, followed by isothermal step, hot clip, tempering4Second, the tempering process can not overheat, the final hardness of the microstructure64-66.5HRC. Application of circular saw cutterMainly used for copper, iron, aluminum, alloys and other medium hard below narrow and deep material metallic processing slot or Cutting. At the same time, it can also be used for milling non-metallic materials such as plastics and wood. When cutting stainless steel, use a high-nitrogen cutter or a coated saw blade.