New large drill bit

May 28 11:07:03, 2024

After five years of practice, the master workshop of Beijing Crane Factory has successfully solved the problem of processing solid materials with large drill bits. It is introduced as follows: 1. The grinding of the chisel edge knows from the experimental results that the uranium force is mainly caused by the chisel produce. For example, if the solid material of φ70mm is processed, it is processed with twist drill, and the chisel edge is = 8mm. And the new large drill processing, horizontal

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