Device for the treatment/working of surfaces

A motor driven handheld tool for the machining of surfaces, comprising:

• a first housing unit for supporting said motor driven handheld tool;
• a second housing unit joined to said first housing unit, said first and second housing units being rotatable relative to each other;
• at least one tool holding fixture that is rotatably mounted in said second housing unit and that is adapted to receive a tool therein to allow a surface to be machined;
• a means for driving said at least one tool holding fixture and for driving the second housing unit for rotation relative to the first housing unit;
• wherein said driving means comprises a joint rotary power source that drives said at least one tool holding fixture at the same time as it causes relative rotation between said first and second housing units;
• and
• wherein said driving means further comprises a drive component joined in each case secured against rotation with the end section of a drive shaft of said at least one tool holding fixture at the opposite side thereof and frictionally or interlockingly coupled with the first housing unit for transferring torque to said first housing unit for the rotation of the same relative to said second housing unit.