pilot hole
Meaning
A narrow hole drilled or punched into a surface, to facilitate the insertion of a wider screw, nail, drill bit, or other boring tool.
Synonyms
rough hole
prepared hole
overdrilling
pilot drift
lead hole
guide hole
subdrilling
pilot tunnel
drift heading
advanced bore hole
Bohrmeißel
avant-trou
barramina
boorkop
trépano
Notes
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