| 摘要 |
An adjustable socket for turning threaded fasteners that have polygonal heads includes a core member detachably connectable to a fastener driving tool, and a pair of jaw members flanking the core member and supported thereon for longitudinal movement have forward gripping portions defining a socket. Inner surface portions of the jaw members ride on the core member to increase the span of the socket as the jaws move rearwardly on the core member, and a longitudinal slot in each jaw member cooperates with a headed stud on the core to limit the span of the socket. A compression spring surrounding the core member biases the jaw members forwardly.
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