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General mining

General mining related terms and definitions in minerals and related activities.

Contributors in General mining

General mining

Replacement bit

Mining; General mining

A bit made by reusing the sound diamonds salvaged from a used drill bit and setting them in the crown attached to a new bit blank. Some new diamonds usually are added to those salvaged, since ...

Multilayer bit

Mining; General mining

A bit set with diamonds arranged in successive layers beneath the surface of the crown. Compare: impregnated bit; surface-set bit.

Standard bit

Mining; General mining

A bit the size and design of which are as specified in standards accepted by the drilling industry.

Medium-stone bit

Mining; General mining

A bit with diamonds ranging from 8 to 40 per carat in size.

Pilot reaming bit

Mining; General mining

A bit used to enlarge a borehole.

Broaching bit

Mining; General mining

A bit used to enlarge a borehole.

Reamer bit

Mining; General mining

A bit used to enlarge a borehole.

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