cylindrical boring

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• Boring (disambiguation) — Boring is an adjective describing something that causes boredom.Boring may also refer to: *Boring (mechanical), a mechanical engineering term referring to the formation of a cylindrical hole in a solid material **Tunnel boring machine (TBM) and… …   Wikipedia

• Cylindrical grinder — The cylindrical grinder is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to… …   Wikipedia

• boring — boring1 /bawr ing, bohr /, n. 1. Mach. a. the act or process of making or enlarging a hole. b. the hole so made. 2. Geol. a cylindrical sample of earth strata obtained by boring a vertical hole. 3. borings, the chips, fragments, or dust produced… …   Universalium

• 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 bar — noun : a cylindrical cutter bar to which a boring tool or cutter is securely attached * * * Metalworking. a bar holding a tool for boring a cylinder or the like. [1835 45] …   Useful english dictionary

• boring — bor·ing || bɔːrɪŋ adj. not interesting, dull bɔː 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

• Well boring — Well Well, n. [OE. welle, AS. wella, wylla, from weallan to well up, surge, boil; akin to D. wel a spring or fountain. ????. See {Well}, v. i.] [1913 Webster] 1. An issue of water from the earth; a spring; a fountain. [1913 Webster] Begin, then,… …   The Collaborative International Dictionary of English

• metallic wood-boring beetle — any of numerous metallic green, blue, copper, or black beetles of the family Buprestidae, the larvae of which bore into the wood of trees. * * * ▪ insect also called  Jewel Beetle,         any of some 15,000 species of beetles (insect order… …   Universalium

• coleopteran — /koh lee op teuhr euhn, kol ee /, adj. 1. belonging or pertaining to the order Coleoptera. n. 2. a beetle. [1840 50; COLEOPTER(A) + AN] * * * ▪ insect Introduction   any member of the insect order Coleoptera, consisting of the beetles and weevils …   Universalium

• machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… …   Universalium

• 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