The common methods of machining graphite electrode include turning, milling, drilling, etc. according to different machining processes, select the appropriate tool structure, such as graphite turning tool, graphite milling cutter, graphite drill bit, etc. The cutting tools for cutting graphite electrode are mainly cdw302 graphite turning tool, cdw302 graphite milling cutter, cdw302 graphite drill bit, HPD coated milling cutter and HPD coated drill bit. Cdw302 graphite tool and HPD coated tool have the characteristics of sharpness, wear resistance and high service life, which can increase the service life of the tool by 10-20 times, reduce the number of tool changes and greatly improve the processing efficiency. The cutting edge is specially optimized to effectively reduce the cutting resistance and improve the efficiency; At the same time, it can process graphite products efficiently when the cutting speed is 2-3 times higher than that of cemented carbide tools, so as to meet the processing requirements of large batch, high efficiency and high precision of the machining center.