Safety activation device for an electric tool

The invention is disclosed a power tool, the power tool is used for driving a motor tools (40), the electric tool comprises at least one switch element; at least one switch element and control system (42), which is used for starting motor (40), designed the control system (42) is not only and a secondary a trigger at least one switch element or at the same time or connected with the trigger at least two switch element is connected with the motor of the first groove of the first groove (40) is composed of a tool, and provided at least three operator schemata, namely non-operation pattern, work mode and mode, wherein non-operation pattern, aOperation motor (40); the work mode; the drive motor (40) is composed of a tool, the centre), a signal information user to conversion motor is wherein work mode, which a reverse driving a step is trigger switch element.