| 摘要 |
A spanner with a sleeve having ratchet teeth and a smooth portion comprises a spanner body having a sleeve at one end thereof. A lower portion of the sleeve is formed with a resisting portion at a lower end. The resisting portion has a plurality of ratchet teeth at an inner periphery thereof. An inner wall of the sleeve below the resisting portion is formed as a smooth portion. An upper side of the sleeve is formed as a retracting portion. An annular recess being formed at a retracting portion; a restoring structure including a C ring, an elastomer, and a push unit. When the buckling flange of the push unit resists against one end of the resisting portion, the resisting surface of the push unit protrudes out of the resisting portion to slightly protrude from the smooth portion.
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