A device for rounding the corners of paper mountboard and polyester sheets. Used to remove the corner points of polyester, which is used in encapsulation, in order to avoid damage to materials during storage.
A small piece of equipment that rounds or notches the corners of an engraving plate. Some models allow the punching of a hole in conjunction with the notch or corner. Less expensive models work with plastic only, while more expensive models will work with plastic and metal.