Generally the punching machine can become Angle, processing the wear silk hole should do a special tooling.

一般打孔机都不能变角度，加工此穿丝孔需做一个专用工装。

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Through the design special tooling realize parts wear silk hole processing;

通过设计专用工装实现零件穿丝孔的加工；

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In general drilling, axes decline and diameter enlarged of the hole are the main problems to affect the precision of machine tooling.

麻花钻普通钻削中，孔轴线的偏斜和孔径的扩大是影响其加工精度的主要问题。

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