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punching drilling

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  • Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… …   Wikipedia

  • Paper drilling — is a technique used in trade binderies for providing large quantities of paper with round holes. The paper can be processed as loose leafs and in brochures (stitched, perfect bound). The holes usually serve for storage (filing), sometimes for… …   Wikipedia

  • Blacksmith — For other uses, see Blacksmith (disambiguation). Blacksmith A blacksmith at work Occupation …   Wikipedia

  • Hallmark — A hallmark is a mark or series of marks struck on items made of precious metals mdash; platinum, gold, silver and in some nations, palladium. General OverviewHallmarks DefinedA hallmark, is an official mark or series of marks struck on items made …   Wikipedia

  • 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

  • Safe-cracking — is the process of opening a safe, generally without the combination. It may also refer to a computer hacker s attempts to break into a secured computer system.Physical safe crackingDifferent procedures may be used to crack a safe, depending on… …   Wikipedia

  • Metalworking — Machining a bar of metal on a lathe. Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts… …   Wikipedia

  • Beaconsfield Mine collapse — The Beaconsfield Mine collapse occurred on 25 April 2006 in Beaconsfield, Tasmania, Australia. Of the 17 people who were in the mine at the time, 14 escaped immediately following the collapse, one was killed, and the remaining two were found… …   Wikipedia

  • Bakken Formation — Infobox Rockunit name = Bakken Formation caption = Map of Williston Basin oil fields with reservoirs in Bakken Formation (Saskatchewan is north border). Most oil comes from Elm Coulee Oil Field type = Geological formation prilithology = Shale,… …   Wikipedia

  • Punch (tool) — For punches used in punch presses, see Punching. A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Punches are used to drive objects, such as nails, or to form an… …   Wikipedia

  • Canadian pipe mine — The Canadian pipe mine, also known as the McNaughton tube, was a type of landmine deployed in Britain during the invasion crisis of 1940 1941. It comprised a horizontally bored pipe packed with explosives, and once in place this could be used to… …   Wikipedia

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