What does counterbore mean?

Definitions for counterbore
coun·ter·bore

This dictionary definitions page includes all the possible meanings, example usage and translations of the word counterbore.

Princeton's WordNet

  1. counterbore, countersink, countersink bitnoun

    a bit for enlarging the upper part of a hole

Wiktionary

  1. counterborenoun

    A cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.

  2. counterborenoun

    The tool with which a counterbore is machined.

  3. counterboreverb

    To create such a cylindrical recess.

Wikipedia

  1. Counterbore

    A counterbore (symbol: ⌴) is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw or fillister head screw, is required to sit flush with or below the level of a workpiece's surface. Whereas a counterbore is a flat-bottomed enlargement of a smaller coaxial hole, a countersink is a conical enlargement of such. A spotface often takes the form of a very shallow counterbore. As mentioned above, the cutters that produce counterbores are often also called counterbores; sometimes, to avoid ambiguity, the term counterbore cutter is used instead. The symbol is Unicode character U+2334 ⌴ COUNTERBORE.

ChatGPT

  1. counterbore

    A counterbore is a cylindrical flat-bottomed hole that enlarges another hole. It is typically used when a fastener, such as a bolt, is required to sit flush with or below the level of a surface. This tool serves the purpose of concealing the head of the bolt. The counterbore creates a consistent diameter for the head of the fastener, providing a tidy finish. On a broader aspect, it's a specific kind of drilling or boring technique.

Webster Dictionary

  1. Counterborenoun

    a flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head

  2. Counterborenoun

    a kind of pin drill with the cutting edge or edges normal to the axis; -- used for enlarging a hole, or for forming a flat-bottomed recess at its mouth

  3. Counterboreverb

    to form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore

Wikidata

  1. Counterbore

    A counterbore is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw, is required to sit flush with or below the level of a workpiece's surface. Whereas a counterbore is a flat-bottomed enlargement of a smaller coaxial hole, a countersink is a conical enlargement of such. A spotface often takes the form of a very shallow counterbore. As mentioned above, the cutters that produce counterbores are often also called counterbores; sometimes, to avoid ambiguity, the term counterbore cutter is used instead.

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Numerology

  1. Chaldean Numerology

    The numerical value of counterbore in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of counterbore in Pythagorean Numerology is: 1

Popularity rank by frequency of use

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Translations for counterbore

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"counterbore." Definitions.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.definitions.net/definition/counterbore>.

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