Found 2 items, similar to twist drill.
English → English (WordNet) Definition: twist drill twist drill n : a bit or drill having deep helical grooves [syn: twist bit]
English → English (gcide) Definition: Twist drill Twist \Twist\, n. 1. The act of twisting; a contortion; a flexure; a convolution; a bending. [1913 Webster] Not the least turn or twist in the fibers of any one animal which does not render them more proper for that particular animal's way of life than any other cast or texture. --Addison. [1913 Webster] 2. The form given in twisting. [1913 Webster] [He] shrunk at first sight of it; he found fault with the length, the thickness, and the twist. --Arbuthnot. [1913 Webster] 3. That which is formed by twisting, convoluting, or uniting parts. Specifically: [1913 Webster] (a) A cord, thread, or anything flexible, formed by winding strands or separate things round each other. [1913 Webster] (b) A kind of closely twisted, strong sewing silk, used by tailors, saddlers, and the like. [1913 Webster] (c) A kind of cotton yarn, of several varieties. [1913 Webster] (d) A roll of twisted dough, baked. [1913 Webster] (e) A little twisted roll of tobacco. [1913 Webster] (f) (Weaving) One of the threads of a warp, -- usually more tightly twisted than the filling. [1913 Webster] (g) (Firearms) A material for gun barrels, consisting of iron and steel twisted and welded together; as, Damascus twist. [1913 Webster] (h) (Firearms & Ord.) The spiral course of the rifling of a gun barrel or a cannon. [1913 Webster] (i) A beverage made of brandy and gin. [Slang] [1913 Webster] 4. [OE.; -- so called as being a two-forked branch. See Twist, v. t.] A twig. [Obs.] --Chaucer. Fairfax. [1913 Webster] 5. Act of imparting a turning or twisting motion, as to a pitched ball; also, the motion thus imparted; as, the twist of a billiard ball. [Webster 1913 Suppl.] 6. A strong individual tendency, or bent; a marked inclination; a bias; -- often implying a peculiar or unusual tendency; as, a twist toward fanaticism. [Webster 1913 Suppl.] Gain twist, or Gaining twist (Firearms), twist of which the pitch is less, and the inclination greater, at the muzzle than at the breech. Twist drill, a drill the body of which is twisted like that of an auger. See Illust. of Drill. Uniform twist (Firearms), a twist of which the spiral course has an equal pitch throughout. [1913 Webster]