Hand-held and hand-guided power tool comprising a housing with a driving motor located therein for actuating a driving shaft upon operation of the driving motor and further comprising a working element connected to the driving shaft in a torque proof manner and so as to perform a working movement about a rotational axis of the working element and/or in a working plane extending perpendicular to the rotational axis as a result of operation of the driving motor and consequently actuation of the driving shaft, wherein the working element is connected to the driving shaft by means of a form fit connection (16, 17) in a plane extending perpendicular to the rotational axis of the working element, wherein the form fit connection (16, 17) is releasable in an axial direction, and wherein the working element is held within the form fit connection (16, 17) in respect to the driving shaft in the axial direction by means of magnetic force, characterized in that the driving shaft is connected to a tool-connection arrangement in a torque proof manner, the tool-connection arrangement comprising a protrusion member protruding from the housing of the power tool, the working element is a plate-like backing pad member with two opposing surfaces, a first bottom surface for releasable attachment of a polishing or abrasive member by means of a hook-and-loop fastener and an opposite top surface with a backing pad-connection arrangement comprising a recess member through which the rotational axis of the backing pad member extends, the protrusion member has an external circumferential surface rotationally asymmetrical in respect to the rotational axis of the backing pad member, the recess member has an internal circumferential surface rotationally asymmetrical in respect to the rotational axis of the backing pad member, wherein the protrusion member and the recess member are adapted to enter into mutual engagement with each other thereby realizing the form fit connection (16, 17) and releasably connecting the backing pad-connection arrangement to the tool-connection arrangement in the axial direction, at least one permanent magnet is located immediately below the recess member of the backing pad-connection arrangement, the protrusion member comprises at least one further permanent magnet or at least one ferromagnetic element, wherein the at least one permanent magnet below the recess member on the one hand and the at least one further permanent magnet or the at least one ferromagnetic element of the protrusion member on the other hand are adapted to interact with one another in order to hold the backing pad-connection arrangement within the form fit connection (16, 17) in respect to the tool-connection arrangement in the axial direction by means of magnetic force. wherein the working element is connected to the driving shaft by means of a form fit connection (16, 17) in a plane extending perpendicular to the rotational axis of the working element, wherein the form fit connection (16, 17) is releasable in an axial direction, and wherein the working element is held within the form fit connection (16, 17) in respect to the driving shaft in the axial direction by means of magnetic force, characterized in that the driving shaft is connected to a tool-connection arrangement in a torque proof manner, the tool-connection arrangement comprising a protrusion member protruding from the housing of the power tool, the working element is a plate-like backing pad member with two opposing surfaces, a first bottom surface for releasable attachment of a polishing or abrasive member by means of a hook-and-loop fastener and an opposite top surface with a backing pad-connection arrangement comprising a recess member through which the rotational axis of the backing pad member extends, the protrusion member has an external circumferential surface rotationally asymmetrical in respect to the rotational axis of the backing pad member, the recess member has an internal circumferential surface rotationally asymmetrical in respect to the rotational axis of the backing pad member, wherein the protrusion member and the recess member are adapted to enter into mutual engagement with each other thereby realizing the form fit connection (16, 17) and releasably connecting the backing pad-connection arrangement to the tool-connection arrangement in the axial direction, at least one permanent magnet is located immediately below the recess member of the backing pad-connection arrangement, the protrusion member comprises at least one further permanent magnet or at least one ferromagnetic element, wherein the at least one permanent magnet below the recess member on the one hand and the at least one further permanent magnet or the at least one ferromagnetic element of the protrusion member on the other hand are adapted to interact with one another in order to hold the backing pad-connection arrangement within the form fit connection (16, 17) in respect to the tool-connection arrangement in the axial direction by means of magnetic force.