| 摘要 |
PURPOSE: A screw driving tool is provided to insure a high quality screw fitting in a sheet metal frame. CONSTITUTION: A screw driving tool includes: a housing(1); a hollow spindle(3) rotatably supported in the housing(1) with a possibility of a limited axial displacement relative thereto; a screw-in spindle(5) at least partially extending in the hollow cylinder(3), connected thereto for joint rotation therewith, and supported for a limited axial displacement relative thereto; an impact mass(15) for displacing the screw-in-spindle(5) in a screw-in direction; a drive motor(2) for rotating the screw-in spindle(5); and a clutch(6) located between the hollow spindle(3) and the drive motor output shaft(19) for transmitting rotational movement to the hollow spindle(3).
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