The benefits of diamond milling cutters are mainly reflected in the following aspects:

1. High hardness and wear resistance: diamond is the hardest superhard material found at present, and its hardness is much higher than that of graphite materials, and its wear resistance is excellent. Therefore, diamond milling cutter can maintain better cutting performance, reduce tool wear and improve tool life when milling graphite electrode at high speed.
2. High strength and resistance: diamond tool material has high strength and resistance, and can withstand large cutting forces, vibration and impact. Polycrystalline diamond (PCD) tools and chemical vapor deposition diamond coating tools are carbide tools as the matrix, the cutting part is welded or coated with diamond material, combined with the high hardness of diamond and the high toughness of carbide, to avoid the brittle fracture of the tool.
3. High processing efficiency: diamond milling cutter has high hardness and good wear resistance, so the processing efficiency is high, which can greatly improve production efficiency and reduce production costs.
4. High processing accuracy: the cutting force and thermal deformation of the diamond milling cutter are small, which is conducive to improving the processing accuracy and surface quality, so as to obtain better processing results.
5. Strong adjustment ability: the cutting edge of the diamond milling cutter can be passivated, and then re-grinding, which improves the use time of the tool, reduces the cost of the entire tool, and greatly reduces the regrinding cost of the diamond tool, and has enough service life and adjustment times.

In short, diamond milling cutter because of its high hardness and wear resistance, high strength and resistance, high processing efficiency, high processing accuracy, strong adjustment ability and other advantages, has a wide range of application prospects in high-speed milling graphite electrode and other fields.