Kneeless-type milling machines are used for groove surface machining (vertical, horizontal, inclined) in large-size work pieces. The machine structure has no knee, the table moves along the base guides mounted on the foundation. Such design provides for more rigidness and working accuracy in comparison to knee-type machines; machining of heavy-weight and large-size work pieces is possible using kneeless-type milling machines. The spindle head is at the same time gearbox, it moves along vertical guides of the column. The possibility for the axial shift of the spindle to adjust the milling cutter to the required size is also provided for in the machines of this type.