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Noun: counterbore  'kawn-tu(r)`bor
  1. A bit for enlarging the upper part of a hole
    - countersink, countersink bit

Type of: bit

Encyclopedia: Counterbore

Nearest

counteractively
counterargument
counterattack
counterattraction
counterbalance
counterbalanced
counterbattery fire
counterblast
counterblow
counterbombardment
counterbore
counterchallenge
counterchange
countercharge
countercheck
counterclaim
counterclockwise
counterclockwise rotation
countercoup
counterculture
countercurrent