1. In the electronic industry, the machining finish standard of twist drill requires high surface finish and clear details, and there can be no burrs, scratches, bumps and other places that affect the performance of electronic components.
2. Precision machining. In precision machining, it is required that the surface smoothness of the twist drill bit after machining is below Ra0.4μm, and the surface is free of oil stain and roughness to ensure the accuracy and quality of the parts.
3, medical equipment processing, medical equipment processing requirements twist drill surface finish is high, no noise and vibration, aseptic, not easy to produce pollution and bacterial growth, to ensure the health and safety of medical equipment.