countersink

views updated Jun 08 2018

coun·ter·sink / ˈkountərˌsingk/ • v. (past and past part. -sunk / -ˌsəngk/ ) [tr.] enlarge and bevel the rim of (a drilled hole) so that a screw, nail, or bolt can be inserted flush with the surface. ∎  drive (a screw, nail, or bolt) into such a hole.

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