Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.
- noun A tool for making such a hole.
- transitive verb To make a countersink on or in.
- transitive verb To drive (a screw or bolt) into a countersink.
from The Century Dictionary.
- To form by drilling or turning, as a cavity in timber or other materials, for the reception of the head of a bolt or screw, a plate of iron, etc., in order that it may be nearly or quite flush with the surface: as, to
countersink a hole for a screw. - To cause to sink in any other body so as to be nearly or quite flush with its surface: as, to
countersink a screw or bolt by making a depression for its head. - noun A drill or brace-bit for countersinking, variously made, according as it is to be used on wood, iron, brass, etc.
- noun An enlargement of a hole to receive the head of a screw or bolt.
- noun The recess in the chamber of a gun into which the rim of the cartridge fits.
from the GNU version of the Collaborative International Dictionary of English.
- noun An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
- noun A drill or cutting tool for countersinking holes.
- transitive verb To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part.
- transitive verb To cause to sink even with or below the surface.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun a
conical recess , typicallymachined around ahole to admit ascrew so that it sitsflush with a surface. - verb transitive to create such a conical recess.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a bit for enlarging the upper part of a hole
- verb insert (a nail or screw below the surface, as into a countersink)
- noun a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Drills are to be procured from the various dealers, but can be made from steel wire softened in the fire and filed to a sharp three-cornered point -- afterwards tempered to hardness -- for the smaller eggs, or filed up for the larger eggs to the pattern of a "countersink" used for wood; indeed, the smallest-sized
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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Alternatively, they can be retrofitted to devices such as countersink gauges, measuring situations where conventional 1: 1-ratio indicators would be rendered useless.
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