Noun: star drill staa(r) dril
- A steel rock drill with a star-shaped point that is used for making holes in stones or masonry; it is operated by hitting the end with a hammer while rotating it between blows
"The stonemason used a star drill to create decorative holes in the granite"
Derived forms: star drills
Type of: bore bit, borer, rock drill, stone drill
Encyclopedia: Star drill