| 摘要 |
The hand grip (1) is formed with a slot, which divides a part of the hand grip comprising a torque arm (5), which is bent under load, so that it is made to indicate when a specific, predetermined torque is achieved. The torque arm outer free end incorporates a snap claw, the end of which snaps over a projection in the hand grip when the predetermined torque is achieved. The shaft lower end (3) is so formed that it can tighten screws with notches, star-shaped heads, or nuts. The hand grip is of a synthetic polymer material. A sprung metal plate is baked into the hand grip in order to confer a higher rigidity to bending for the torque arm (5). |
