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boring diameter

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  • boring machine — Metalworking. a machine for boring holes in which the cutter is rotated, usually about a horizontal axis. * * * Machine tool for producing smooth and accurate holes in a workpiece by enlarging existing holes with a cutting tool, which may bear a… …   Universalium

  • Boring (mechanical) — In machining, boring is the process of enlarging a hole that has already been drilled (or cast), by means of a single point cutting tool (or of a boring head containing several such tools), for example as in boring a cannon barrel. Boring is used …   Wikipedia

  • 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 || 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

  • boring bar — A machine with a stiff bar that has multiple cutting bits used to cut engine cylinders to a specific size. As used in garages, to cut worn cylinders to a new diameter or bearing bores in proper alignment with each other …   Dictionary of automotive terms

  • Tunnel boring machine — A tunnel boring machine that was used at Yucca Mountain nuclear waste repository A tunnel boring machine (TBM) also known as a mole , is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.… …   Wikipedia

  • Directional boring — A small directional boring unit in action Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore… …   Wikipedia

  • 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

  • Channel Tunnel — Map of the Channel Tunnel Overview Location English Channel (Strait of Dover) Coordinates Folkestone …   Wikipedia

  • Lathe — A lathe (pronEng|ˈleɪð) is a machine tool which spins a block of material to perform various operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has… …   Wikipedia

  • Deep foundation — A deep foundation installation for a bridge in Napa, California, United States …   Wikipedia

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