countersink$547323$ - meaning and definition. What is countersink$547323$
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What (who) is countersink$547323$ - definition


Countersink         
  • Side and end view of a 4-fluted countersink
  • Side and end view of a Weldon style "zero flute" countersink
TYPE OF CONICAL-SHAPED CUTTER USED TO CUT HOLES IN MATERIALS
Form countersinking; Countersinking; ⌵
·noun A drill or cutting tool for countersinking holes.
II. Countersink ·vt To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork.
III. Countersink ·noun An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
IV. Countersink ·vt 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; as, to countersink a hole for a screw.
countersink         
  • Side and end view of a 4-fluted countersink
  • Side and end view of a Weldon style "zero flute" countersink
TYPE OF CONICAL-SHAPED CUTTER USED TO CUT HOLES IN MATERIALS
Form countersinking; Countersinking; ⌵
¦ verb (past and past participle countersunk) enlarge and bevel the rim of (a drilled hole) so that a screw or bolt can be inserted flush with the surface.
?drive (a screw or bolt) into such a hole.
Countersink         
  • Side and end view of a 4-fluted countersink
  • Side and end view of a Weldon style "zero flute" countersink
TYPE OF CONICAL-SHAPED CUTTER USED TO CUT HOLES IN MATERIALS
Form countersinking; Countersinking; ⌵
A countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common use is to allow the head of a countersunk bolt, screw or rivet, when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat-bottomed hole that might be used with a socket-head capscrew).