Select appropriate raw materials according to the performance requirements of milling cutters, such as high-speed steel (HSS) or cemented carbide. Ensure that the hardness of the raw materials meets the standards through hardness testing equipment, and use a spectral analyzer to detect whether the chemical composition is accurate. If high-speed steel materials are used, forging processes are required. For cemented carbide milling cutters, the powder metallurgy process is adopted to manufacture blanks. Use CNC grinding machines or ordinary grinding machines to conduct rough machining on the blanks, and utilize high-precision grinding machines, such as five-axis simultaneous grinding machines, to perform precision grinding on the cutting edges. Carry out special treatments on the cutting edges, such as chamfering or passivation treatments. Select appropriate coating materials according to the application scenarios and processing requirements of milling cutters, and use high-precision measuring tools, such as coordinate measuring machines, to detect the dimensional accuracy of milling cutters.