Hand held or hand guided sanding or polishing power tool comprising: - a motor operated electrically or pneumatically, - a tool shaft directly or indirectly driven by the motor during operation of the power tool, - a backing pad (9; 9a) with a bottom surface adapted for releasable attachment of a sanding or polishing element (12; 12a) and with a rotary shaft attached to the center on a top side of the backing pad (9; 9a), - a multi-angle joint located between the backing pad (9; 9a) and an eccentric element, in order to allow swivelling of the backing pad (9; 9a) into orientations inclined in respect to an original plane extending perpendicular in respect to the rotational axis (10; 10a) of the tool shaft, wherein a rotational axis of the rotary shaft is spaced apart from a rotational axis (10; 10a) of the tool shaft, - a further tool shaft directly or indirectly driven by the motor during operation of the power tool, - a further backing pad (9; 9b) with a bottom surface adapted for releasable attachment of a further sanding or polishing element (12; 12b) and with a further rotary shaft attached to the center on a top side of the further backing pad (9; 9b), wherein a further rotational axis of the further rotary shaft is spaced apart from a rotational axis (10; 10b) of the further tool shaft, characterized in that - the eccentric element is attached to the tool shaft in a torque proof manner, - the rotary shaft is mounted to the eccentric element in a manner freely rotatable about its rotational axis, - a further eccentric element is attached to the further tool shaft in a torque proof manner, and - the further rotary shaft is mounted to the further eccentric element in a manner freely rotatable about its rotational axis. - a motor operated electrically or pneumatically, - a tool shaft directly or indirectly driven by the motor during operation of the power tool, - a backing pad (9; 9a) with a bottom surface adapted for releasable attachment of a sanding or polishing element (12; 12a) and with a rotary shaft attached to the center on a top side of the backing pad (9; 9a), - a multi-angle joint located between the backing pad (9; 9a) and an eccentric element, in order to allow swivelling of the backing pad (9; 9a) into orientations inclined in respect to an original plane extending perpendicular in respect to the rotational axis (10; 10a) of the tool shaft, wherein a rotational axis of the rotary shaft is spaced apart from a rotational axis (10; 10a) of the tool shaft, - a further tool shaft directly or indirectly driven by the motor during operation of the power tool, - a further backing pad (9; 9b) with a bottom surface adapted for releasable attachment of a further sanding or polishing element (12; 12b) and with a further rotary shaft attached to the center on a top side of the further backing pad (9; 9b), wherein a further rotational axis of the further rotary shaft is spaced apart from a rotational axis (10; 10b) of the further tool shaft, - the eccentric element is attached to the tool shaft in a torque proof manner, - the rotary shaft is mounted to the eccentric element in a manner freely rotatable about its rotational axis, - a further eccentric element is attached to the further tool shaft in a torque proof manner, and - the further rotary shaft is mounted to the further eccentric element in a manner freely rotatable about its rotational axis.