Mining Drilling Bits
Penetration and wear are the two key elements of consistent drilling.
There are 3 main categories: soft, medium and hard formation drill bits
Soft formation rock bits are used in unconsolidated sands, clays, soft limestone, red beds and shale, etc.
Medium formation bits are used in calcite, dolomite, lime stones, and hard shale.
Hard formation bits are used in hard shale, calcite mud-stones cherty limestone and hard and abrasive formations.
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