punch

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punch

(pŭnch),
An instrument for making a hole or indentation in some solid material or for driving out a foreign body in such material.
[L. pungo, pp. punctus, to stick, to punch]

punch

An instrument for making a small circular hole in material or tissue, esp. the skin.

punch

a metal, rodlike instrument with one pointed or cavitied end and one propulsion end to be pushed hard with the palm of the hand or driven with a hammer in order to drive a hole or to excise a small round piece of tissue.

punch biopsy
a circular piece of skin excised by a hand driven biopsy punch. See also keyes punch.
dental punch
has a slight cavity at the end so that the tooth to be driven will seat into the end and not slip off.
punch graft
see punch graft.
References in periodicals archive ?
Since most of Custom Air-Plenums' parts are punched out of stainless steel, and its Murata Wiedemann Motorum press operates at up to 500 strokes a minute, tooling must not only keep pace with these high hit rates on the very hard stainless steel material, it must last longer, provide flatness of the workpiece, and do so with dependability.
Another advantage of the automatic tool changing system is reduction or elimination of incorrectly punched parts due to human error, for example when the machine operator returns a punch to the wrong tool station.
Graves said one of the brothers punched Andreade, who was knocked down and banged his head on the ground.
But for some, the dozens of fleck-sized boxes, almost too tiny to be punched out with a pencil or pen, can provide a dizzying if not downright blinding field of choices.
Twedt said if voters accidentally punched the wrong holes, only the race where the mistakes are made will be invalidated.
19 death of 13-year-old Stephan Corson, stated that 11 witnesses said Stephan started the fight, and that a teacher told investigators that after she separated the two boys, Stephan reached around her and punched the other boy.