metalworking machines and tools, namely, bending machines, [ boring machines, broaching machines, ] cutting machines, drilling machines, [ grinding machines, horning machines, lapping machines, milling machines, perforating machines, planing machines, shaping machines, shearing machines, slotting machines, machining centers, broaches, chasers, gear cutters, ] metalworking machine tools [ , milling cutters, and thread milling cutters ]