A disc milling machine is a machine tool whose shape resembles a thin disc or saw blade. Its main purpose is to create narrow and deep grooves, notches or to cut material. It is clamped on a horizontal arbor, which is essentially a shaft in a milling machine, and as it rotates it removes material by means of teeth located around its circumference. Some types of disc cutters have cutting teeth only on the circumference, which is suitable for shallower grooves. Others, known as 'face and circumferential' cutters, have cutting edges on one or both sides. These side teeth ensure that the walls of the milled groove are smooth and clean, and also improve chip evacuation from the cutting area, preventing tool clogging. Due to its design, it is used, for example, for milling grooves for feathers on shafts, for precision cutting of bar material to the required length or in the manufacture of parts where a precise and narrow notch is required. They are made of high-speed steel or fitted with replaceable carbide inserts for machining more resistant materials.
