countersink

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Related to countersinking: spot facing, trepanning
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countersink
single-flute countersink bit

coun·ter·sink

 (koun′tər-sĭngk′)
n.
1. A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.
2. A tool for making such a hole.
tr.v. coun·ter·sunk (-sŭngk′), coun·ter·sink·ing, coun·ter·sinks
1. To make a countersink on or in.
2. To drive (a screw or bolt) into a countersink.

countersink

(ˈkaʊntəˌsɪŋk)
vb (tr) , -sinks, -sinking, -sank or -sunk
1. (Building) to enlarge the upper part of (a hole) in timber, metal, etc, so that the head of a bolt or screw can be sunk below the surface
2. (Building) to drive (a screw) or sink (a bolt) into such an enlarged hole
n
3. (Building) Also called: countersink bit a tool for countersinking
4. (Building) a countersunk depression or hole

coun•ter•sink

(ˈkaʊn tərˌsɪŋk)

v. -sank, -sunk, -sink•ing,
n. v.t.
1. to enlarge the upper part of (a hole) to receive the head of a screw or bolt.
2. to set the head of (a screw or bolt) flush with or below the surface.
n.
3. a tool for countersinking a hole.
[1810–20]

countersink


Past participle: countersunk
Gerund: countersinking

Imperative
countersink
countersink
Present
I countersink
you countersink
he/she/it countersinks
we countersink
you countersink
they countersink
Preterite
I countersank
you countersank
he/she/it countersank
we countersank
you countersank
they countersank
Present Continuous
I am countersinking
you are countersinking
he/she/it is countersinking
we are countersinking
you are countersinking
they are countersinking
Present Perfect
I have countersunk
you have countersunk
he/she/it has countersunk
we have countersunk
you have countersunk
they have countersunk
Past Continuous
I was countersinking
you were countersinking
he/she/it was countersinking
we were countersinking
you were countersinking
they were countersinking
Past Perfect
I had countersunk
you had countersunk
he/she/it had countersunk
we had countersunk
you had countersunk
they had countersunk
Future
I will countersink
you will countersink
he/she/it will countersink
we will countersink
you will countersink
they will countersink
Future Perfect
I will have countersunk
you will have countersunk
he/she/it will have countersunk
we will have countersunk
you will have countersunk
they will have countersunk
Future Continuous
I will be countersinking
you will be countersinking
he/she/it will be countersinking
we will be countersinking
you will be countersinking
they will be countersinking
Present Perfect Continuous
I have been countersinking
you have been countersinking
he/she/it has been countersinking
we have been countersinking
you have been countersinking
they have been countersinking
Future Perfect Continuous
I will have been countersinking
you will have been countersinking
he/she/it will have been countersinking
we will have been countersinking
you will have been countersinking
they will have been countersinking
Past Perfect Continuous
I had been countersinking
you had been countersinking
he/she/it had been countersinking
we had been countersinking
you had been countersinking
they had been countersinking
Conditional
I would countersink
you would countersink
he/she/it would countersink
we would countersink
you would countersink
they would countersink
Past Conditional
I would have countersunk
you would have countersunk
he/she/it would have countersunk
we would have countersunk
you would have countersunk
they would have countersunk
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.countersink - 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
hole - an opening deliberately made in or through something
2.countersink - a bit for enlarging the upper part of a holecountersink - a bit for enlarging the upper part of a hole
bit - the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press; "he looked around for the right size bit"
Verb1.countersink - insert (a nail or screw below the surface, as into a countersink)
bury, sink - embed deeply; "She sank her fingers into the soft sand"; "He buried his head in her lap"
Translations

countersink

[ˈkaʊntəsɪŋk] (countersank (pt)) [ˈkaʊntəsɒŋk] (countersunk (pp)) [ˈkaʊntəsʌŋk] VT [+ hole] → avellanar; [+ screw] → encastrar

countersink

[ˈkaʊntərsɪŋk] vt [+ hole] → fraisercounter staff n (in bank, ticket office, post office)guichetiers mpl

countersink

[ˈkaʊntəˌsɪŋk] vt (countersank (pt) (countersunk (pp))) (hole) → svasare; (screw) → accecare
References in classic literature ?
The mark they thus leave on the whale, may best be likened to the hollow made by a carpenter in countersinking for a screw.
Countersinking is a process used in sheet metal forming.
05 mm, to facilitate spotting and countersinking in a single operation.
Contract notice: supply and installation of equipment for the implementation of an innovative tool for countersinking in production.
The tungsten carbide tipped pre-drilling and countersinking tool is designed to create a perfect hole and fit for matching fasteners, while ensuring consistently superior finishes.
2 -- Peddinghaus Corporation has released the Advantage 2 high speed beam drill line, which is capable of high speed drilling, tapping, countersinking and multi axis scribing for profiles such as beams, channel, angle, square/rectangular hollow sections and flat bar.
And countersinking (making a slightly larger hole, so the head of the screw goes beneath the surface of the wood) doesn't help much either.
Top Tip: Countersinking screw holes lets you fill over the hole before painting.
The cure for both problems is to use a countersinking drill bit ($4), which gives you a pilot hole and a recess for the screw head in one step.
Before incorporating the E-Z Burr solution, Skyway removed the hub from its Hyundai-Kia Hi-V50D machine, placed it on a workbench, and manually deburred the rear of the holes by using a countersinking tool in an air drill.
According to this certified manufacturing engineer/prolific author on precision manufacturing topics, there are 147 different countersinking tools commonly used--not counting size, design, and material variations.
For a neater and safer finish, use a countersinking drill bit for your holes so the screws don't protrude above the surface of the board.