| 摘要 |
PROBLEM TO BE SOLVED: To provide a hammer with a driver function that can facilitate a screwing operation of a bolt and the like despite a narrow and complicated situation in a field. SOLUTION: The hammer has a hammerhead at least with a nail driving function at a tip of a handle. For selective mounting of a screw driving unit, a base of the handle is mounted in a series fixed or pivotable relation with a square plug mountable with a square socket. Even in such a narrow and complicated situation in a field as requires a screwing operation of a bolt, a nut, a machine screw and the like in a deep position and a back position, the handle of the hammer can be used as a shank and a lever to compensate a shortage of a dimension of another tool and thereby enable and facilitate the screwing operation.
|
