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United States Bureau of Mines
업종: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources. Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A bit the size and design of which are as specified in standards accepted by the drilling industry.
Industry:Mining
A bit used to enlarge a borehole.
Industry:Mining
A bit used to enlarge a borehole.
Industry:Mining
A bit used to enlarge a borehole.
Industry:Mining
A bit used to enlarge a borehole.
Industry:Mining
A bit used to enlarge a borehole.
Industry:Mining
A bit with diamonds ranging from 8 to 40 per carat in size.
Industry:Mining
A bit with serrated teeth used in rotary drilling.
Industry:Mining
A bit with two or more rolling discs that do the cutting. Used in rotary drilling through certain formations.
Industry:Mining
A bit, the crown of which is either surface set or impregnated with whole diamonds, as opposed to an impregnated or surface-set bit in which the inset diamonds are fragmented diamonds.
Industry:Mining