Slotting is the process of cutting with a tool, in which the workpiece rotates or the tool rotates, and a groove shaped tool is used to cut corresponding grooves on the workpiece. For example, a series of cutting methods include straight groove cutting, arc groove cutting, deep groove, shallow groove, inner hole groove, and outer multi face groove. In order to meet different cutting needs, our company has produced and developed a series of targeted groove cutting tool bars and blades. The tool bars are mainly made of high-quality spring steel and 42crmo material. The processing process adopts post fire processing and overall forging, effectively ensuring the steel of the tool body. Moreover, the tool body itself is also subjected to chemical plating or blackening treatment, which not only enhances the corrosion resistance and wear resistance of the tool bar. It also makes the appearance of the blade more beautiful.