| 摘要 |
The bolt clamp part (11) of the tool is provided with a rotatable outer sleeve (12) whose front side (13) contains an elongated cavity with the same dimensions as the bolt head. Once the bolt head is in place inside the cavity the outer sleeve is twisted until the clamp part groove is parallel with the bolt head cavity, then the sleeve is twisted a quarter revolution to lock and centre the bolt head inside the wrench. |
