Abstract: An apparatus and a method for accurately processing a neck portion of a bottle-shaped can without changing a posture of the can. An inner tool is inserted into the neck portion from the bottom of a can body to form a stepped portion, and comprises a first forming section having a diameter smaller than an inner diameter of a neck portion. An outer tool comprises a second forming section that is opposed to the inner tool. The stepped portion is formed on the neck portion by sandwiching the neck portion by the first forming section and the second forming section. The inner tool further comprises a holding member that is situated coaxially with the can body to be contacted to an inner surface of the can body. The holding member is attached to the inner tool while being allowed to move in a radial direction together with the can body.

Abstract: A hand-held closure tool for closing a container. Based on the design of the inventive closure tool, a pair of wheels provides two points of contact between the closure tool and the container peripheral flange. This design feature stabilizes the closure tool as the container is moved in a circular fashion. The stability of the closure tool against the peripheral flange of the container enables the closure tool movement to be accomplished in a single, continuous motion.