| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact impact wrench which can easily impart an impact force, is easy in handling, and allows safe work.SOLUTION: A manually-operable weight 5 is firmly adhered to the tip of an oscillating arm 1 which is supported with a rotation axial core of a fitting member 2 having a fitting hole fit to an object to be fastened as an oscillation center, and the object to be fastened is rotated by being imparted with an impact force generated by the inertia of the weight 5 by oscillating the oscillating arm 1. |
