| 摘要 |
<p>A powered hand tool comprising a pneumatic motor including a cylinder, a main body formed as a hollow tube member, a main body rear end being formed with a fluid inlet and a fluid outlet, said main body being axially disposed for engagement with said pneumatic motor, a main body front end with an interior surface fitted for engagement with a lock nut, said pneumatic motor having a rotary shaft axially extending out of said main body front end wherein the diameter of said pneumatic motor is smaller than the diameter of said hollow tube member, an internal isolation layer composed of a vibration isolation material placed in said hollow tube member so that said vibration isolation material is engaged with and adjacent said ends of said hollow tube member and said pneumatic motor.</p> |
