Improvement of tap sleeve

Figure 1 is a tap sleeve for use with a quick change drill chuck. In the long-term use process, I found these two problems. (1) The square hole of the sleeve and the square head of the tap is easily rounded, so that the effect of rotating the tap is not obtained, and the square hole of the sleeve and the tap is opened on the handle body, and the square hole is Bad, the whole set is scrapped. Therefore, the material is wasted a lot.

Wireless Ultrasonic Water Meter

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