drill down

drill down (to something)

to bore downward to something or some distance. We drilled down to a layer of waterbearing sand, hoping to make a well. They had to drill down to bedrock to make a base for the piers that hold the building up.

Common Names:

Name	Pronounced	Usage
Terenzio	-	Italian
Prometheus	prə-MEE-thee-əs (English)	Greek Mythology
Deepak	-	Indian, Hindi, Marathi, Bengali, Gujarati, Punjabi, Malayalam, Kannada, Tamil, Telugu, Nepali
Lotario	-	Italian
Abdulah	-	Bosnian
Zeev	-	Hebrew