| 摘要 |
PURPOSE: A wrench is provided to operate even in a small place and to rapidly connect a work piece while the work piece is inserted. CONSTITUTION: A wrench comprises a body(110) and a grip. One segment includes a first fastener(122) mounted and fixed in the body. The other segment has tension from a spring and has a second fastener(124) installed in the first fastener. A fastener(120) with protrusions mutually going in gear with one another is located at a segmented area of the first and second fasteners. |
