| 摘要 |
An electric hand tool includes a housing, which houses a driving mechanism and a chuck for driving a bit, a battery pack for providing electricity to the driving mechanism, and a switch unit installed in the housing. The switch unit has a switch, an operating member for switching on/off the switch to control supply of electricity from the battery pack to the driving mechanism, and a switching lever extended out of a through hole in the rear portion of the housing and forming a switching portion for operation by the thumb of the hand holding the housing to drive the switching lever to change the direction of electric current and to further reverse the direction of rotation of the driving mechanism.
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