counterbore

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English[edit]

A counterbore in a piece of metal.

Etymology[edit]

From counter- (against) +‎ bore (hole).

Noun[edit]

counterbore (plural counterbores)

  1. A cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
  2. The tool with which a counterbore is machined.

Translations[edit]

Verb[edit]

counterbore (third-person singular simple present counterbores, present participle counterboring, simple past and past participle counterbored)

  1. (transitive) To create such a cylindrical recess.

See also[edit]