| 摘要 |
A portable power tool includes an elongate body portion and a head portion at one end which includes an implement holding chuck. The head portion may be pivotally displaced with respect to the body portion. This is accomplished by the use of a swivelable joint of the ball and socket type between the body portion and the head portion and by an angular coupling in a driving connection between an electric motor in the body portion and the chuck in the head portion. The body portion includes a hand gripping portion of such girth as to provide a comfortable and secure grip by a human hand. The electric motor is disposed within a region of the body portion comprising the hand portion. The electric motor may be driven by a battery.
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