用钻模钻孔
Drill holes with a drill jig
以上为机器翻译结果，长、整句建议使用 人工翻译 。
相对于用常规的手工方法加工孔，钻模使得钻孔、铰孔和攻丝速度快很多而且精度更高成为可能。
Jigs make it possible to drill, ream, and tap holes at much greater speeds and with greater accuracy than when the holes are produced by conventional hand methods.
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