drill-rod life

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• Diamond core drill — bits (sometimes called hole saws) are used to bore holes in brick, concrete, glass, and stone. They are not generally used with softer materials. The bit consists of a metal cylinder, usually relatively soft steel mounted on an arbor. Industrial… …   Wikipedia

• Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …   Wikipedia

• mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …   Universalium

• Quecreek Mine Rescue — The Quecreek Mine Rescue took place when nine miners were trapped underground for over 78 hours, July 24 ndash;28, 2002. All nine miners were rescued.Accident and rescueOn July 24, 2002, coal miners at the Quecreek Mine in Lincoln Township,… …   Wikipedia

• Denji Sentai Megaranger — The title card for Denji Sentai Megaranger Genre Tokusatsu Created by Toei …   Wikipedia

• Imagin — For the animation studio of the same name, see Imagin (studio). The Imagin (イマジン, Imajin?) are a fictional race that serve as the antagonists in the Kamen Rider Series Kamen Rider Den O. The name Imagin comes from several words in the English,… …   Wikipedia

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

• Kagaku Sentai Dynaman — Dynaman redirects here. For the Mega Man enemy, see Robot Master. Kagaku Sentai Dynaman Genre Tokusatsu Created by …   Wikipedia

• Power Rangers Operation Overdrive — Operation Overdrive redirects here. For the scheme to improve public transportation, see Operation Overdrive (transportation). Power Rangers Operation Overdrive Format Action/Adventure Science fantasy …   Wikipedia

• Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …   Wikipedia

• Oil well — The pumpjack, such as this one located south of Midland, Texas, is a common sight in West Texas. An oil well is a general term for any boring through the earth s surface that is designed to find and acquire petroleum oil hydrocarbons. Usually… …   Wikipedia