From Longman Dictionary of Contemporary Englishdrill something into somebody phrasal verbTELL/ORDER somebody TO DO somethingto keep telling someone something until they know it very well Mother had drilled it into me not to talk to strangers. → drill→ See Verb table
Examples from the Corpus
drill into • If we drill a borehole into the aquifer the groundwater will be under sufficient pressure to overflow from the borehole.• Out of these ad hoc sessions came a bold plan to drill a hole into the earth.• They just drill it into the zone. 