(drill hole location)

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• Drill bushing — A drill bushing, also known as a jig bushing,[1] is a tool used in metalworking jigs to guide cutting tools, most commonly drill bits. Other tools that are commonly used in a drill bushing include counterbores, countersinks, and reamers. They are …   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

• Hole punch — A hole punch (known also as a hole puncher, paper puncher, holing pincer, or rarely perforator) is a common office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder. History …   Wikipedia

• drill jig — noun A type of jig that expedites repetitive hole center location on multiple interchangeable parts by acting as a template to guide the twist drill into the precise location of each intended hole center …   Wiktionary

• hole — Synonyms and related words: Augean stables, Babylon, CAT, Gomorrah, Sodom, abode, abri, abysm, abyss, aerospace, aerosphere, air hole, air pocket, airspace, alveolation, alveolus, antre, antrum, aperture, area, armpit, arroyo, asylum, auger,… …   Moby Thesaurus

• Drill floor — The Drill Floor is the heart of any drilling rig and is also known as the pad. This is the area where the drill string begins its trip into the earth. It is traditionally where joints of pipe are assembled, as well as the BHA (bottom hole… …   Wikipedia

• Crandall Canyon Mine — Coordinates: 39°27′36″N 111°10′04″W / 39.460000°N 111.167639°W / 39.460000; 111.167639 The Crandall Canyon Mine, formerly Genwal …   Wikipedia

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• Orex Exploration — Inc. Type Public (TSX V: OX) Industry Mining Founded 1987 …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium