Description
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Total drilling cost
Bit performance study records help estimate operational costs to determine the most economical bit types to use for each operating condition. Rock drill bit performance are evaluated by tracking meters drilled and penetration rates for an individual bit.
Total drilling cost is the cost of the bit plus the cost of operating the drill. The speed at which the bit drills is included by dividing the cost of the drill/hour by the penetration rate of the bit:
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