A
hole punch (also known as a hole puncher) is a common
office tool that is used to create holes in sheets of
paper, often for the purpose of collecting the sheets in a
binder or folder. A
leather punch, of different construction from one designed for paper, is used for leather goods, cloth, or thin plastic sheeting. Hole punch tools are also made to used on
sheet metal, such as
aluminum siding or
air ducts.