| 摘要 |
A dual function powered oscillating hand tool comprises (i) a drive unit having an electric motor and a drive shaft; (ii) a bearing mounted on said drive shaft and located radially eccentrically relative to said drive shaft; (iii) a second drive shaft mounted on said eccentric bearing and (iv) means for mounting a sanding head on said second drive shaft. The sanding head may comprise a sanding platen for random orbit sanding or a sanding shoe for orbital sanding and said tool further comprises means selectively engageable to restrict said random orbit of the sanding shoe to a regular orbit.
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