Hammer drill

Details Hammer drill Hammer drill

2007-11-16

2010-02-16

Rada, Rinaldi I. (Department: 3721)

Tool driving or impacting

Impacting devices

With means for rotating tool

C173S090000, C173S117000

Reexamination Certificate

active

07661485

ABSTRACT:
A hammer drill has an electric drive motor having a motor shaft and a tool shaft driven in rotation by the electric drive motor. A hammer action is provided. The tool shaft is driven by a first single-stage gear unit directly by the motor shaft of the electric drive motor. The hammer action is driven by a second single-stage gear unit directly by the motor shaft of the electric drive motor.

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