carbide drill
71industrial diamond — ▪ mineral any diamond that is designated for industrial use, principally as a cutting tool or abrasive. In general, industrial diamonds are too badly flawed, irregularly shaped, poorly coloured, or small to be of value as gems, but they are …
72drag bit — noun A drill bit usually designed for use in soft formation, such as sand clay, or some soft rock. Uses include drilling water wells, that consists of a drill pipe connector attached to blades on the end. The cutting edge of the drag bit is often …
73December 2010 — was the twelfth month of that year. It began on a Wednesday and ended after 31 days on a Friday. Portal:Current events This is an archived version of Wikipedia s Current events Portal from December 2010 …
74bur — n. 1) a cutting instrument that fits in a dental handpiece (see drill). It may be made from hardened steel, stainless steel, or tungsten carbide or be coated with diamond particles. Burs are mainly used for cutting cavities in teeth, removing old …
75Carbon — (), but as most compounds with multiple single bonded oxygens on a single carbon it is unstable.] Cyanide (CN–), has a similar structure, but behaves much like a halide ion (pseudohalogen). For example it can form the nitride cyanogen molecule… …
76Russian submarine K-141 Kursk — An Oscar II class submarine drawing Career (Russia) …
77Machinist — A machinist is a person who uses machine tools to make or modify parts, primarily metal parts, a process known as machining. This is accomplished by using machine tools to cut away excess material much as a woodcarver cuts away excess wood to… …
78Sandvik — Infobox Company company name = Sandvik AB company company type = Public (OMX|SSE4928|SAND) foundation = 1862 company slogan = We make it possible location = Sandviken, Sweden key people = Lars Pettersson (President and CEO), Clas Åke Hedström… …
79Powder metallurgy — is the process of blending fine powdered materials, pressing them into a desired shape (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering). The powder metallurgy process generally… …
80Refractory metals — are a class of metals that are extraordinarily resistant to heat and wear. Refractory metals are said to be poorly resistant to oxidation and corrosion. [UFL EMA 6625: Advanced Metal Processing, Summer 2008, Lecture 09] These properties make them …
