Adjusting device for an electric motor

A device for reversing the direction of rotation and/or for adjusting the carbon brushes for a reversible electric motor for an electric hand tool, with a base, with a mount which is mounted pivotably on the base, switching contacts for reversing the direction of rotation of the electric motor and/or brushholders for the carbon brushes wiping over the collector of the electric motor being arranged, the switching contacts in the form of contact blades, being located on the brushholders, which are electrically connected to the carbon brushes, fixed contacts, which are electrically connected to the field windings of the electric motor, being arranged on the base, and the fixed contacts interacting with the switching contacts as mating contacts with alternate contact-making of the carbon brushes, for reversing the direction of rotation of the electric motor as the mount is pivoted, wherein the electric motor is driven by means of at least one of a pulse width controller, a phase gating controller and a phase chopping controller, wherein the power electronics are arranged at least partially on the base and/or on the mount, and wherein the fixed contact is configured as a contact arm which is bent in the form of a U, and such that two mating contacts are arranged as switching contacts such that the fixed contact exerts a force on both sides against the mating contacts.