| 摘要 |
A socket wrench ( 10 ) has tubular sections ( 20, 24 ) at its opposite ends separated by a center wall ( 26 ) that includes a non-circular socket ( 28 ) for receiving a complementary shaped end portion ( 30 ) of a turning tool ( 32 ). The tool ( 32 ) is inserted endwise through one end of the tool ( 10 ) and its end ( 30 ) is inserted into the socket ( 28 ) lug-receiving recesses ( 38 ) formed in the opposite end of the wrench ( 10 ) are moved to engage lugs ( 18 ) on a lug nut ( 12, 14 ). Each end of the socket wrench ( 10 ) is constructed to engage a different size lug nut ( 12, 14 ). At its longitudinal center, the socket wrench ( 20 ) is provided with wrench flats ( 46 ) for receiving the jaws ( 50 ) for an open-ended wrench ( 48 ). The end portions ( 22, 24 ) are preferably provided with knurling, serrations, or some other high friction surface that can be easily held so that a user can turn the socket wrench ( 10 ) by hand. A center section between the tubular sections ( 20, 24 ) includes at least one radially extending opening (THI) sized to receive an end portion of a turning tool (TI).
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