star drill


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Noun1.star drill - 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
bore bit, borer, rock drill, stone drill - a drill for penetrating rock
References in periodicals archive ?
Add to that, today, it is the era of the conscious traveller who wants to go eco- friendly, try new experiences and is tired of the same five- star drill.
Each drill can be done independently or combined into one drill, which we call the Star Drill.
The STAR drill can be used either indoors or outdoors.