Definition of twist drill
: a drill having deep helical grooves extending from the point to the smooth portion of the shank
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Use a 3⁄32-inch twist drill bit to make the two holes spaced about ½ inch apart near the top of the base.
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Illustration of twist drill
First Known Use of twist drill
circa 1875
Learn More about twist drill
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See words that rhyme with twist drill Britannica.com: Encyclopedia article about twist drill
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