Meaning of the word "drill down" in English

What does "drill down" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

drill down

US /drɪl daʊn/
UK /drɪl daʊn/
"drill down" picture

Phrasal Verb

to examine something in more detail

Example:
We need to drill down into the sales figures to understand why they are declining.
The manager asked the team to drill down into the customer feedback.