gun-boring drill
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Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry … Wikipedia
Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… … Wikipedia
drill — drill1 drillable, adj. drillability, n. driller, n. /dril/, n. 1. Mach., Building Trades. a. a shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation. b. a tool, esp. a hand tool, for holding and… … Universalium
drill — I. verb Etymology: Dutch drillen Date: 1619 transitive verb 1. a. to fix something in the mind or habit pattern of by repetitive instruction < drill pupils in spelling > b. to impart or communicate by repetition < impossible to drill the simplest … New Collegiate Dictionary
drill — 1. n. & v. n. 1 a pointed, esp. revolving, steel tool or machine used for boring cylindrical holes, sinking wells, etc. 2 a esp. Mil. instruction or training in military exercises. b rigorous discipline or methodical instruction, esp. when… … Useful english dictionary
drill — I. /drɪl / (say dril) noun 1. a tool or machine for making cylindrical holes, especially by rotation. 2. Military a. training in formal marching or other precise military or naval movements. b. an exercise in such training: gun drill. 3. any… …
Boring — Bore Bore, v. t. [imp. & p. p. {Bored}; p. pr. & vb. n. {Boring}.] [OE. borien, AS. borian; akin to Icel. bora, Dan. bore, D. boren, OHG. por?n, G. bohren, L. forare, Gr. ? to plow, Zend bar. [root]91.] 1. To perforate or penetrate, as a solid… … The Collaborative International Dictionary of English
boring — Ⅰ. bore [1] ► VERB 1) make (a hole) in something with a drill or other tool. 2) hollow out (a gun barrel or other tube). ► NOUN 1) the hollow part inside a gun barrel or other tube. 2) the diameter of this: a small bore rifle … English terms dictionary
boring — bor·ing || bÉ”Ërɪŋ adj. not interesting, dull bÉ”Ë n. hole; diameter, caliber; cylindrical hollow (gun barrel, etc.); surge of water v. drill a hole; advance, progress; cause boredom, make weary … English contemporary dictionary
Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… … Wikipedia
military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… … Universalium
