| 摘要 |
An open end ratchet wrench includes a socket member rotatably received in an opened head member and having a number of teeth and having an open notch for selectively aligning with an open slot of the head member, a pawl engaged in the head member and having a toothed end for selectively engaging with the teeth of the socket member and for allowing the socket member to be rotated in one direction by the head member, and a spring biasing member engaged with the pawl and having two end portions extended out of the pawl and engaged with the head member for anchoring the spring biasing member to the head member and for evenly biasing the pawl to engage with the teeth of the socket member.
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