roller drill bit

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• Roller cone bit — A roller cone bit is a drill bit used for drilling through rock, for example when drilling for oil and gas. [cite book | last = Hyne | first = Norman J. | title = Dictionary of Petroleum Exploration, Drilling Production | publisher = PennWell… …   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

• drill bit — noun a bit used in drilling for oil • Syn: ↑drilling bit • Hypernyms: ↑bit • Hyponyms: ↑core bit, ↑fishtail bit, ↑blade bit, ↑rock bit, ↑ …   Useful english dictionary

• Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …   Wikipedia

• roller bit — noun a drill bit that has hardened rotating rollers • Syn: ↑rock bit • Hypernyms: ↑drilling bit, ↑drill bit …   Useful english dictionary

• rock bit — noun a drill bit that has hardened rotating rollers • Syn: ↑roller bit • Hypernyms: ↑drilling bit, ↑drill bit * * * noun : a hardened drill for making holes in hard rock * * * rock bit, a bit with jagged teeth, used for drilling through hard rock …   Useful english dictionary

• drilling bit — noun a bit used in drilling for oil • Syn: ↑drill bit • Hypernyms: ↑bit • Hyponyms: ↑core bit, ↑fishtail bit, ↑blade bit, ↑rock bit, ↑ …   Useful english dictionary

• Well drilling — Tricone rock bit Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, natural gas, or petroleum. Drilling for the exploration of the nature of the material underground (for… …   Wikipedia

• Hughes Christensen — Hughes Christensen, a division of Baker Hughes Inc., is a large oil and gas drill bit company. Howard Hughes, Sr. founded the company early in the 20th century. His two cone, rolling cutter rock bit whose patent was issued by the US Patent Office …   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

• Tap and die — Not to be confused with Tool and die. Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the… …   Wikipedia