Boring

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Boring

 

(in Russian, rastachivanie), a mechanical process for machining interior surfaces by boring (cutting) tools in order to increase the diameter of a hole. Boring is done on lathes, boring machines, and other metal-cutting machines. It is possible to machine blind and through holes, both cylindrical and conical, as well as grooves and slots. Boring yields a machining precision of classes 4 or 5 and a surface roughness of classes 2 or 3.


Boring

 

(in Russian, rassverlivanie), mechanical working of an existing hole with a drill in order to increase the diameter. It is done either by machine, using drilling and boring machines, lathes and other metalcutting machines, or by hand, using pneumatic or electric drills. The precision achieved is of the fourth to fifth class, and the surface roughness is of the second to third class.

boring, borehole

A hole drilled in the ground to obtain soil samples for evaluation and to obtain information about the strata.
References in periodicals archive ?
Since bureaucratic budget documents usually have all the excitement of a single Olsen twin, I expected 71 pages of boringness.
So it may be best to go for a dusky colour on the bottom to get her out of her black boringness.
Staring at Susan Sontag's wall-sized face for several minutes, one is rewarded with Zen-ish insight into Warhol's power and boringness.
17] Ann Gordon remembered, "Women in the city had the luxury of bein' entertained as they did their housework because they could listen to the radio, or watch television, or even talk on the phone to take some of the boringness away and to make their work load seem lighter and less of a burden.
Clark's intention seems to be to resist the easy appeal of the boringness of eternal life.
46] The excessive interest in the anatomy of the concept of art is a result of this conception and Wolterstorff, whose own writings arc not notable for their wit and humour, says with some justice that |[flor sheer boringness, the results of these endeavors have few peers'.