bore bit

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Noun

bore bit - a drill for penetrating rock

cross bit - a rock drill having cruciform cutting edges; used in mining

drill - a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)

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

straight flute, straight-fluted drill - a rock drill with flutes that are straight

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References in periodicals archive ?

* Power bore bits have a working end similar to auger bits and, like spade bits, are used in conjunction with power drills.

Drilling tools

ANOTHER week, another bore bites the dust (TheApprentice, BBC2, Wednesday) .

Paddy Shennan: The Apprentice, BBC2, Wednesday

Free Bore bits have fabricated fixed cutters that can be cut off and replaced extending the body life.