punch - Mechanical Devices. 1. a short, cylindrical steel device with a square, tapered head and a knurled or hexagonal area for gripping; used to mark a hole in metal or wood by striking with a hammer, and for driving out headless bushings or rivets.a short, cylindrical steel device with a square, tapered head and a knurled or hexagonal area for gripping; used to mark a hole in metal or wood by striking with a hammer, and for driving out headless bushings or rivets. 2. a tool used to force metal into a die.a tool used to force metal into a die. Archaeology. a pointed tool, usually of bone, stone, or wood, used to perforate a material such as hide or shell. Surgery. a surgical instrument used to indent, perforate, or cut a segment of tissue or to remove foreign matter. Computer Technology. 1. a hole in a computer card or paper tape, used in combinations to represent information.a hole in a computer card or paper tape, used in combinations to represent information. 2. to code information on cards or paper tape.to code information on cards or paper tape. ;
дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр
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