| 摘要 |
PROBLEM TO BE SOLVED: To provide a wrench with high marketability. SOLUTION: The wrench for turning a bolt is constituted as follows. Continuously installed bodies 3, 4 are set at a continuously installed part 2 whose both end parts are continuously installed to the bolt. The continuously installed bodies 3, 4 are provided to both end parts of a grip body 1 in the direction perpendicular to the length direction of the grip body 1. The continuously installed bodies 3, 4 are mutually in a twisted positional relation. Further, at least two diameters of the four continuously installed parts 2 are set so as to have different diameters. COPYRIGHT: (C)2005,JPO&NCIPI
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