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| Punch (engineering) ： ウィキペディア英語版 |
Punch (tool)
A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Most woodworkers prefer to use a ball-peen hammer for using punches. Punches are used to drive objects, such as nails, or to form an impression of the tip on a workpiece. Decorative punches may also be used to create a pattern or even form an image.
== Pin ==
A ''pin punch'' is used to remove metal pins from a hole. First use a starter punch to loosen metal pin then use a pin punch to finish removing the pin from hole...
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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