breast drill


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Breast drill

Like a hand drill except heavier and with a plate at the top that could be pressed against to increase pressure on the bit.
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Noun1.Breast drill - a portable drill with a plate that is pressed against the chest to force the drill point into the workbreast drill - a portable drill with a plate that is pressed against the chest to force the drill point into the work
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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The beams were shaped by hand with broad axes, adzes, and chisels; cut with hand saws of various types, and drilled with breast drills, braces, bits, and augers.