| 摘要 |
The invention is a wrenching tool useful for loosening the locking collars of frangible fasteners which are commonly used in the aerospace industry. The tool has a socket head with an end of reduced thickness to provide a land on which is pivotally received the jaw end of a handle. The through socket of the head is traversed by the vertical shoulder between the head and its reduced thickness end, thereby providing an open area to the socket. The jaw end of the handle projects into this open area to grasp items within the socket, such as the narrow wall of the locking collar of a frangible fastener. In this application, the jaw end of the handle can be placed flush against the surface of the workpiece, thereby firmly grasping even very narrow locking collars. The wrenching tool can also be used to apply a frangible fastener by inverting the tool and grasping the hex collar in its socket. If necessary, the wrenching tool is used with a hex key wrench to immobilize the fastener bolt during removal or application of the frangible fastener.
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