Thesaurus: counterbore

Related headwords

Definitions

1. n. A flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head.
2. n. 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.
3. v. t. To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore.
4. n. a bit for enlarging the upper part of a hole
5. 1. A flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head. 2. 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. To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore.
6. To form a counterbore in, by boring, turning, or drilling; toenlarge, as a hole, by means of a counterbore.
7. n a bit for enlarging the upper part of a hole