: a drill having deep helical grooves extending from the point to the smooth portion of the shank
Illustration of twist drill
Examples of twist drill in a Sentence
Recent Examples on the WebMark the center of the diagonals with an awl and bore a pilot hole on the mark using a 9⁄64-inch twist drill bit.
James Schadewald, Popular Mechanics, 3 July 2021 Use a 118-degree twist drill bit to bore these holes.
Roy Berendsohn, Popular Mechanics, 13 June 2020 The drill is equipped with a half-inch chuck, allowing you to bore with large-shank twist drills, hole saws, and big step drills.
Roy Berendsohn, Popular Mechanics, 15 Oct. 2019 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, 25 Oct. 2017
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'twist drill.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.