star drill

(redirected from plugging chisel)
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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 ?
Once you've done this, take a thin plugging chisel and, using a heavy hammer, chisel out the mortar surrounding the brick.
This is when it's easier to use a bolster chisel to loosen the pointing from the bricks and then use the plugging chisel to actually remove the pointing.
2 Use a heavy hammer and plugging chisel to remove and break-up all defective pointing mortar between the slabs.