1, the electronics industry, twist drill bit processing finish standards require high surface flatness, clear details, no burrs, scratches or bumps and other defects, these defects will have an impact on the performance of electronic components.
2, precision machining, in precision machining, the twist drill bit machining surface finish should be required to reach Ra0.4μm or less, and at the same time, the surface is required to be free of oil, no sense of barren roughness, in order to ensure the accuracy and quality of the parts.
3, medical equipment processing, medical equipment processing requires twist drill bit surface finish, no noise and vibration, sterile, not easy to produce pollution and bacterial growth, to ensure that the health and safety of medical equipment.