| 摘要 |
A ratchet mechanism for tools includes a ring member having first bevel teeth and second bevel teeth respectively defined in an outer periphery of the ring member. The first bevel teeth and the second bevel teeth are separated by an annular groove defined in the outer periphery of the ring member. Two pawl members are connected by a spring and each pawl member has third bevel teeth and fourth bevel teeth so as to respectively engage with the first bevel teeth and the second bevel teeth.
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