在生产中有很多小孔径的内螺纹(外径在1～3mm之间),需要攻丝,如果用绞杆夹持这种小丝锥,费时费力。我们在生产中制作了一个小型丝锥夹段手柄,效果较好,现介绍如下:在长10mm,直径为6mm 的金属棒横向上,如图示钻一个φ 3.5mm的通孔,这就是夹套。在夹套两端各攻M3的丝孔,然后各拧上一个M3的长螺钉作为手柄,为防止松动,在长螺钉上 In the production of many small-diameter internal thread (diameter of 1 ~ 3mm), the need for tapping, if you use the bar to hold such a small taps, time-consuming and laborious. We have produced a small tap in the production section handle, the effect is better, are described below: In the 10mm long, 6mm diameter metal bar horizontal, as shown drilling a φ 3.5mm through hole, which is the jacket . In the jacket at both ends of the attack M3 wire hole, and then each screw on a M3 long screw as a handle, to prevent loosening, on the long screw