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Countersink

Noun CEFR C1

Definitions

  1. A conical recess, typically machined at the mouth of a hole to admit a screw (with a matching taper) so that the screw sits flush with a surface.
  2. The cutter used to cut such a recess. (Also used, at less depth, for edge-breaking/deburring.)

Equivalents

6 more languages

Examples

“Holonym: center drill (combined drill and countersink)”

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

countersinker Countersinking Countersinks counterslogan counterslope countersmile

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