A forming mill is a specialized tool for machining, the main purpose of which is to create a specific shape profile on the workpiece. Unlike conventional milling cutters, which create flat surfaces or grooves, the geometry of a forming cutter's cutting edge is designed to precisely match the negative of the desired shape. As the cutter moves through the material, it leaves behind a trace that is an exact imprint of its profile. It is used, for example, to produce T-slots for clamping, herringbone grooves for slideways, rounded edges with a certain radius, known as the radius, or even more complex profiles such as gear teeth. In practice, often most of the material is first removed with a conventional tool and the forming cutter is then used to finalise the exact profile. Its deployment is therefore typically where there is a need to produce a shape that would be difficult or impossible to produce with standard milling operations, and the aim is to achieve a specific 'shape detail' in a single working step.