Definitions for counterbore

• Definition
• Anagrams (498)

counterbore coun·ter·bore

Spelling: [koun-ter-bawr, -bohr; koun-ter-bawr, -bohr

IPA: /ˈkaʊn tərˌbɔr, -ˌboʊr; ˈkaʊn tərˈbɔr, -ˈboʊr/

Counterbore is a 11 letter English word.

You can make 498 anagrams from letters in counterbore (bceenoorrtu).

Definitions for counterbore

noun

1. a tool for enlarging a drilled hole for a portion of its length, as to permit sinking a screw head.
2. the portion of the hole so enlarged.

verb (used with object)

1. to enlarge (a drilled hole) along part of the length of the hole by drilling with a bit having a greater diameter.

Origin of counterbore

First recorded in 1605-15; counter- + bore²

Examples for counterbore

The jaw end is counterbored out with a 45-degree counterbore to form a bearing for the forward end of the micrometer screw.

A counterbore in the arbor hub provides clearance for the hub of the pulley which projects beyond the rim on one side.

For enlarging a hole for a certain distance the counterbore is employed.

That it may always do this and yet leave sufficient clearance, the counterbore has been devised.

For counterboring small holes or for facing the metal around their ends, the form of counterbore shown in Fig. 1746 is employed.

If taken off at all it must be pulled, for the dowel-pins, key and counterbore are close fits.