| 摘要 |
<p>The wrench has a transmission element between an operating element and a rotary main portion. A gear element is located between the working element and the rotary main portion. A housing is equipped with a receiving space in which the gear is arranged, and a central portion. An end (241) of central portion is extended upwardly and connected to a portion (22), and an end (242) of central portion is extended downwardly. The portions (22,23) of central portion are formed with different heights.</p> |
