Meaning | A drill for penetrating rock / rock. |
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Synonyms | bore bit, rock drill, stone drill |
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Narrower | cross bit | A rock drill having cruciform cutting edges |
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star drill | A steel rock drill with a star-shaped point that is used for making holes in stones or masonry |
straight flute, straight-fluted drill | A rock drill with flutes that are straight |
Broader | drill | A tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows) |
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Spanish | barrena |
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Verbs | bore | make a hole, especially with a pointed power or hand tool |
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