| 摘要 |
A wrench has at least one wrench sleeve. Wrench holes different in size are formed at a top and a bottom of the wrench sleeve mounted horizontally rotatable within wrench receiving portion provided at an end of a grip handle. Ratchet teeth are formed on an outer peripheral surface of the wrench sleeve. A switch lever has ratchet pawls each engageable with the ratchet teeth that are provided on one side of the wrench sleeve. The wrench is characterized in that the wrench sleeve has a barrel shape, and the wrench sleeve is mounted within the wrench receiving portion so as to be rotatable through 180 DEG with upper and lower opening surfaces being reversible upside down.
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