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breast drill
noun
- a geared drill that can be braced against the chest for additional leverage.
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Word History and Origins
Origin of breast drill1
First recorded in 1860–65
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Example Sentences
Drilling machines, both hand and power, hand and ratchet braces and breast-drill stocks.
From Project Gutenberg
To break the seal, a hollow reamer or facing tool, fitted into a drill press or breast drill, is slipped over the post.
From Project Gutenberg
An ordinary breast drill is used in the construction of this drill press, it being rigidly secured to a piece of oak, A, 2 in.
From Project Gutenberg
For drilling small holes in metal, the breast drill shown in Fig. 1788 is employed.
From Project Gutenberg
A valve grinding tool patterned largely after a breast drill is shown at Fig. 184, D.
From Project Gutenberg
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