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English word
TANDA HUBUNG
WORDNET DICTIONARY
CIDE DICTIONARY
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WORDNET DICTIONARY
Noun counterbore has 1 sense
- counterbore(n = noun.artifact) countersink, countersink bit - a bit for enlarging the upper part of a hole; Array is a kind of bit
CIDE DICTIONARY
counterbore, n.
- A flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head. [1913 Webster]
- 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. [1913 Webster]
counterbore, v. t.
To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore. [1913 Webster]