Core
Barrels
N&N Drilling manufactures a wide assortment of Core Barrels for geotechnical and mineral exploration applications. Our Core Barrels are manufactured using the tightest tolerances to ensure safe, efficient operation as well as a high rate of core sample recovery.
In addition to the industry-standard assembly, we offer options to customize most sections of the core barrel.
Core Bits, Reaming Shells, Overshots and other Coring Tools are also available.
High-Performance Core Barrels for Geotechnical & Mineral Exploration
At N&N Drilling, we manufacture and supply a comprehensive range of core barrels engineered for geotechnical drilling, mineral exploration, and soil investigation. Built to the tightest industry tolerances, our core barrels deliver:
✔ Maximum core recovery for accurate geological sampling
✔ Durability & efficiency in even the most challenging drilling conditions
✔ Customizable configurations to suit diverse drilling applications
Our selection includes wireline, conventional, and DCDMA core barrels, all designed to ensure smooth operation, long service life, and reliable sample extraction.
Customizable Core Barrel Assemblies
We understand that every drilling project has unique requirements. That’s why, in addition to standard core barrel assemblies, we offer options for customization—allowing you to modify key sections to meet your specific drilling needs.
Comprehensive Coring Tool Selection:
To support seamless coring operations, we also stock:
✔ Core Bits – Diamond and carbide-tipped for optimal cutting performance
✔ Reaming Shells – Precision-engineered for extended bit life
✔ Overshots – High-quality retrieval tools for wireline core barrels
✔ Other Coring Accessories – Including locking couplings, adapters, and more
Core Barrel Types & Specifications
Wireline Core Barrels
• AWL, BWL, NWL, NWL-2, HWL, PWL – Standard wireline core barrels for rapid core retrieval
• Triple Tube (BWL-3, NWL-3, HWL-3, PWL-3) – Designed for maximum core sample integrity
Conventional Core Barrels
• BV, NV, NV-2, HV, PV, NWD4 – Ideal for rotary and percussion drilling
• Triple Tube (NV-3, HV-3, PV-3) – Superior performance in fractured or unconsolidated formations
DCDMA Core Barrels
• WM, WG – Standardized by the Drilling Contractors Association for enhanced versatility
• Large Series (2-3/4″ x 3-7/8″, 4″ x 5-1/2″, 6″ x 7-3/4″) – Heavy-duty options for large-diameter coring
View Core Barrels Catalog Below!
Request A Quote
Our cutting-edge equipment and precision-engineered solutions are tailor-made to meet your specific requirements. Experience the efficiency, durability, and unmatched performance of our products. Take the first step towards success and unlock the full potential of your projects by requesting a quote from N&N Drilling Products now!