Used, designed to be used, or able to drill holes.
Capable of penetrating; piercing.
Suffering from boredom; mildly annoyed and restless through having nothing to do.
Causing boredom or tiredness; making you to feel tired and impatient.
Fragment thrown up when something is bored or drilled.
A pit or hole which has been bored.
Used literally: what length.
Used literally: what duration.
Used literally: for what duration.