| 摘要 |
An air-tight structure of a pneumatic tool includes a top cap having a plurality of threaded holes defined in a bottom thereof. A tool body is connected to the top cap and has a shaft removably received therein. A plurality of passages are defined through the tool body and located in alignment with the threaded holes so that a plurality of bolts extend through the passages and are threadedly engaged with the threaded holes in the top cap. A groove is defined in a top of the tool body and a seal is received in the groove.
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