| 摘要 |
A pneumatic ratchet wrench has a body, an air input valve, a switch, a propeller, an eccentric spindle, a lever, a sleeve, a nut and a head. The body has a cavity, a front end and a rear end. The air input valve, the switch, the propeller, the eccentric spindle, the sleeve, the nut and the head are mounted inside the body in sequence from the rear end to the front end. The pneumatic ratchet wrench has few elements so that it provides an easy assembly for operators. Also, the pneumatic ratchet wrench has a small volume and can be used in a small space.
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