| 摘要 |
A sander includes a work table for supporting a work piece and having a frame secured on one end. A housing has one end slidably engaged in the frame and movable upward and downward toward the work table. A motor is secured to the housing and has a spindle extended inward of the housing. A sander member is secured to the spindle so as to be driven by the motor with a greater speed for grinding the work piece. One or more rollers are rotatably coupled to the spindle by a reduction gearing so as to move the work piece with the reduced speed.
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