from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hand tool used to prepare a workpiece prior to drilling a hole. It typically compresses and then suddenly releases a spring, creating a small indentation that, in turn, guides and centers the drill.
  • n. The indentation left by such a tool.
  • v. To prepare a workpiece for drilling by using a centerpunch to create an indentation.
  • v. To place something directly in the middle.


From center + punch (Wiktionary)


  • For a centerpunch to mark the spots for the drill to bite, there are punches made just for the purpose: different diameter shafts with the punch point in the center.

    Irons in the Fire


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