countersink

• countersink

countersink

Noun

a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface

Synonyms:

• countersink

Noun

a bit for enlarging the upper part of a hole

Synonyms:

• counterbore
• countersink
• countersink bit

Verb

insert (a nail or screw below the surface, as into a countersink)

Synonyms:

• set
• countersink