They are called Diamond/CBN Tools that can do Grinding, Cutting, Drilling many things by Diamond/CBN. Such as Car Parts (motor-magnet, safety glass, rear mirror, engine cylinder, cam-shaft, etc), Electric Appliances (TV braun tube, shaft), Semi-conductor, Machine Tool, Ceramic, Crystal and Construction-stone process. That is, they have served various parts; technical development, quality improvement, and economy development because have used wide fields.

If Diamond/CBN Tools were not, Industrial development could be so hard. Because they can do more fast, safe and precise than others.