| 摘要 |
A device for use in combination with a wheel brace for loosening or tightening the wheel nuts of vehicles which provides a significant mechanical advantage without deformation of the brace arm. The device comprises a ground engaging support (10) and a developed lever (11). The ground engaging support has projections (9) for supporting a socket extension (12) horizontally. The developed lever (11) has collars (17, 18) which capture a sliding bar (13) of the socket extension and enable maximum torque to be applied through point "p" when the developed lever is rotated in the direction "x".
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