| 摘要 |
A ring spanner 1 comprises a ring 4 delimited by twelve regular flats 8 at the end of an elongate handle 2. According to the invention, the ring 4 is offset with respect to the handle 2, that is to say that between the axis X-X of the handle and a diametral plane of symmetry A-A of the ring, an angular offset of 7 to 8 DEG is provided. <IMAGE>
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