drift of a bore-hole
71Dial indicator — Dial indicators, also known as dial gauges and probe indicators, are instruments used to accurately measure small linear distances, and are frequently used in industrial and mechanical processes. They are named so because the measurement results… …
72Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
73Metalworking terminology — This article is a list of terms commonly used in the practice of metalworking. Contents 1 Processes 1.1 Casting 1.2 Forge work 1.3 Heat treating …
74Die grinder — A pneumatic die grinder with a right angle head. A die grinder is a handheld power tool used to grind, sand, hone, polish, or machine material, typically metal but also plastic or wood. They are usually pneumatically driven, although versions… …
75Needlegun scaler — A U.S. Navy Seaman uses a needle gun to remove old paint and corrosion aboard USS Kitty Hawk.[1] A needlegun scaler or needle gun is a tool used in metalwork applications as diverse as home repair, automotive repair and shipboard preservation …
76Iran — /i ran , i rahn , uy ran /, n. a republic in SW Asia. 67,540,002; ab. 635,000 sq. mi. (1,644,650 sq. km). Cap.: Teheran. Formerly (until 1935), Persia. * * * Iran Introduction Iran Background: Known as Persia until 1935, Iran became an Islamic… …
77Beam compass — A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses.[1] The instrument can be as a whole, or made on the spot with individual sockets… …
78Timeline of Russian inventions and technology records — The Hall of Space Technology in the Tsiolkovsky State Museum of the History of Cosmonautics, Kaluga, Russia. The exhibition includes the models and replicas of the following Russian inventions: the first satellite, Sputnik 1 (a ball under the… …
79Merksworth (1874) — ‹ The template below (Infobox Ship Wreck Event) is being considered for deletion. See templates for discussion to help reach a consensus.› ‹ The template below (Infobox Ship Wreck Location) is being considered for deletion. See templates for… …
80sink — Synonyms and related words: Babylon, Gomorrah, KO, Sodom, abate, ablate, advance, age, alveolation, alveolus, antrum, aquamanile, armpit, ascend, automatic dishwasher, back, back up, ball up, bankrupt, baptize, basin, bate, bath, bathtub, be… …
