| 摘要 |
A ratchet socket wrench has a main body, a shaft disposed on the main body, a drive device engaging with the shaft, and a sleeve engaging with the drive device. The drive device has a center hole, and a ratchet portion having a plurality of ratchets and an outer periphery groove. An elastic ring encloses the outer periphery groove of the drive device. A collar encloses the drive device. The sleeve has a corrugation hole, and a pawl portion having a plurality of pawls and an outer periphery recess. The pawls engage with the ratchets. The shaft is inserted in the center hole of the drive device. The collar has an inner annular flange. The drive device further has an annular recess to receive the inner annular flange of the collar.
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