7 Cutting, planning, machining, piercing, turning, drilling and milling machines for treatment of materials, namely, metals, alloys, plastics, polymers, and glass; machine tools, namely, lathes, milling machines, manually exchangeable tools, tool turrets and automatic tool changers; machines and systems composed therefrom for treatment of workpieces, namely, cutting systems for metalworking, plastics working and glass working comprised of lathes, milling machines, manually exchangeable tools, tool turrets and automatic tool changers; structural parts for the aforementioned machines, in particular driven and static machine tools and machine tool holders; Cutting, planning, machining, piercing, turning, drilling and milling tools being parts of machines, sockets being parts of machines, and machine tools being parts of machines for cutting, planning, machining, piercing, turning, drilling and milling workpieces