我们利用一些废旧的齿轮和边角余料制造了一台小巧实用的手提攻丝工具。该工具只要用手电钻卡爪夹紧动力进轴,启动电钻即可快速自动攻丝及退出。工效比手工攻丝提高约六倍。经一年多的使用证明,效果较好。传动系统(见附图)及使用方法介绍如下:手电钻卡爪夹紧动力进轴1后,旋转三只螺钉22来调节三根压力弹簧23的压力, We made some small, practical hand-held tapping tools with a few worn gear and corner remnants. The tool as long as the hand chuck claw clamping power into the shaft, start the drill can quickly and automatically tapping and exit. Work efficiency than manual tapping increased about six times. After more than a year of use proved effective. Drive system (see photo) and the use of the introduction are as follows: Claw chuck hand power into the shaft 1, the rotation of three screws 22 to adjust the pressure of the three pressure springs 23,