noun
pneumatic drill; air drill
A drill powered by compressed air, used in construction and roadwork.
工事現場で空気ドリルの音がうるさい。
The sound of the pneumatic drill at the construction site is loud.
削岩機 is a more formal term for a rock drill, often used in mining or heavy construction, while 空気ドリル is a common term for a pneumatic drill in general.
Compound of 空気 (air) and ドリル (drill), a straightforward loanword-based term.