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twist drill

noun

Definition of twist drill

: a drill having deep helical grooves extending from the point to the smooth portion of the shank

Illustration of twist drill

Illustration of twist drill

Examples of twist drill in a Sentence

Recent Examples on the Web

 Use a 3⁄32-inch twist drill bit to make the two holes spaced about ½ inch apart near the top of the base. — James Schadewald, Popular Mechanics, "How to Make a Clip-On Book Light," 25 Oct. 2017

First Known Use of twist drill

circa 1875, in the meaning defined above

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