Abstract: A hand held power tool is connected to a stable reaction point by means of a support device for balancing the reaction torque arising when operating the power tool. The support device comprises two or more links which are articulated relative to each other as well as to the tool and to the reaction point. The articulated link joints comprise pivot pins which are all parallel to each other but perpendicular to the rotation axis of the power tool output shaft. A spring actuated balancing block is connected to the support device for suspending the power tool and that part of the support device that is not suspended in the reaction point.