When purchasing wireline diamond core bits, comparing unit prices is easy.
Comparing actual drilling economics is more useful.
A lower-priced bit can become more expensive if it drills fewer meters, penetrates slowly or requires frequent replacement.
A simple starting calculation is:
Bit Cost per Meter = Diamond Core Bit Purchase Cost ÷ Effective Meters Drilled
For example, the same purchase price produces very different economics if one bit completes substantially more productive drilling meters.
However, bit price alone still does not show the complete picture.
A bit that maintains an efficient penetration rate can help the rig complete more productive drilling during each shift.
Drilling time affects:
Rig operating hours
Fuel or energy use
Labor
Project schedule
Supporting equipment costs
When a bit reaches the end of its useful life, the drill string must be managed according to the drilling system and operating procedure.
In deep holes, changing a bit can involve significant non-productive time.
Longer useful bit life can therefore provide value beyond the purchase price itself.
Fast penetration has limited value if sample quality is unacceptable.
Exploration drilling should balance:
Penetration Rate + Bit Life + Core Recovery + Hole Quality + Downtime
Contractors can build a useful database by recording:
Bit model
Formation
Starting depth
Ending depth
Total meters
Average penetration
Crown condition
Reason for replacement
This information helps future purchasing decisions rely on actual field performance rather than price alone.
YKDRILL supplies diamond core drill bits for geological exploration, mineral exploration and deep-hole drilling, including multiple international coring systems and customized configurations.
For professional exploration contractors, the best-value diamond core bit is the one that delivers competitive total cost per productive meter while maintaining the required core quality.
