HAND TOOL

A hand-held machine tool is disclosed. The tool has an electric motor and an output shaft which can be driven by the electric motor about a working axis. The output shaft has an intake space which is open on the output side for receiving a machine tool and which has two elongated holes cutting into the intake space in the radial direction. Blocking elements lie in the elongated holes and protrude into the intake space and are movable between an end on the output side of the elongated hole and an end on the drive side of the elongated hole. The blocking elements abut on a radial stop in the radial direction and are forced into the intake space in an engaging manner. The stop overlaps in a locked position with the ends on the output side of the elongated holes and can be moved in the withdrawal direction against a spring force of a spring for releasing a radial movement of the blocking elements from the engagement with the intake space. A second spring includes a support ring, two bows protruding from the support ring in the withdrawal direction and bent around the intake space in the form of a segment of a circle, and a pin engaging radially from each bow in the withdrawal direction in front of the blocking element into the elongated hole.