Deep drilling.Need to drill holes where the depth-to-diameter ratio is more than 10? Consider the deep drilling system from Iscar Metals (Arlington, TX; www.iscarmetals.com), which is a modular system that uses brazed and indexable threaded threaded - thread drilling heads with either single- or double-tube shanks
The shanks and tattlers are wading bird species in a number of genera characterised by a medium length bill and long, often brightly coloured legs. . In the single tube design, a coolant system Noun 1. coolant system - a cooling system that uses a fluid to transfer heat from one place to another cooling, cooling system - a mechanism for keeping something cool; "the cooling was overhead fans" introduces fluid in the gap between the drill and the hole so chips are driven through the tube; in the double-tube arrangement, coolant coolant (kōō´l  nt),n flows between the tubes and the chips are driven through the inner tube. The diameter range is from 0.315 to 10 in.; the maximum depth ratio is 300 times diameter. [ILLUSTRATION OMITTED] |
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