a handle having a first handle section and a second handle section;

a pushbutton that is axially displaceable from a starting position against a restoring force of a pushbutton spring;

a transmission gearing, wherein the transmission gearing is arranged in the handle and is configured to multiply a rotation angle which is transmitted from the handle to a blade protruding from the handle or to a chuck for receiving a blade;

a blocking element, which is movable from a release position into a blocking position by means of the pushbutton;

wherein the blocking element in the blocking position secures the blade to the handle or the chuck to the handle in a rotationally fixed manner and is displaceable between the blocking position and the release position in a direction of an axis that extends along a length of the handle or along a length of the blade;

wherein the pushbutton, upon a first actuation, displaces the blocking element into the blocking position with a switching element that is axially displaceable from a starting position;

holding means configured to hold the switching element in the starting position, in which the switching element is displaced from the starting position, while holding the blocking element in the blocking position; and

wherein the holding means are released from a holding position by means of a second actuation of the pushbutton.