Broach and apparatus for making grooves in a workpiece

The invention relates to a broaching tool (1) for the production of grooves (7) in a workpiece (4), comprising a base body (2) having an axis of rotation on which a plurality of cutting elements (5) with at least two different, in particular a plurality of different cutting sections along the circumference of the rotation axis (X) are arranged concentric cutting loop in such a way behind the other, that as a result of a rotational movement of the base body (2) about the rotation axis (X) in a predetermined direction of rotation with the cutting elements (5) by broaching curved grooves (7), whose radius of curvature corresponds to the radius of the cutting circle into a workpiece (4) can be introduced. Moreover, the invention relates to a device for the production of grooves in a tool by broaching comprising such a reamer (1).