Boart Longyear Stingray™ diamond bit: drilling performance notes for mine engineers
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
Boart Longyear has launched the Stingray™ DHM/full face diamond bit, a US‑designed bit engineered specifically for downhole motor and full-face drilling in exploration applications. The bit uses a new crown geometry combined with Boart Longyear’s durable diamond technology to increase penetration rates compared with conventional diamond bits. For drill contractors, the design targets faster advance per hour and reduced bit trips, particularly in hard, abrasive ground where DHM systems are already favoured for directional control and high rotary speeds.
Technical Brief
- Stingray™ bit is configured specifically for downhole motor and full-face coring assemblies.
- Crown design is described as “cutting-edge”, implying non-standard porting and face geometry for fluid management.
- Durable diamond technology suggests high-grade impregnated diamonds aimed at abrasive, high-rotary-speed ground.
- Full-face configuration suits applications where core recovery is secondary to rapid pilot or pre-collar advance.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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