| 摘要 |
A ratcheting wrench is comprised of a pair of movable jaws, each provided with clevis extensions which are commonly pivoted together with an operating handle having an integral jaw extension which jaw extension moves between the clevis extensions on each movable jaw. The movable jaws open to permit the wrench to enclose a pipe run, for example, and the jaws are locked in a closed position preferably by a toggle linkage. While the toggle mechanism is latched, the handle can be operated about an enclosed and difficult to access work piece such as a pipe run, or conventionally with respect to nuts and bolts in a ratcheting fashion.
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