Kata bahasa Indonesia
English word
WORDNET DICTIONARY
Noun has 1 sense
- counterbore(n = noun.artifact) countersink, countersink bit - a bit for enlarging the upper part of a hole;
CIDE DICTIONARY
, 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]
, v. t.
To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore. [1913 Webster]