This paper introduces a method of working thread hole on aluminum part.
介绍一种在铝件上加工螺纹孔的方法。
The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.
本实用新型涉及一种可以钻左旋丝孔的骨科医用左旋钻头，它是在一个金 属钻杆上镂刻有左旋凹槽。
The interior circumferential wall of the connecting pole can be equipped with the thread hole or the taper hole connecting with a machine tool and an electric drill.
连接柱的内圆周壁上可设有与机床和电钻连接的螺纹孔或锥孔。
The interior circumferential wall of the connecting pole can be equipped with the thread hole or the taper hole connecting with a machine tool and an electric drill.
连接柱的内圆周壁上可设有与机床和电钻连接的螺纹孔或锥孔。
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