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.

Available Core Barrel Types:

• Wireline: AWL, BWL, NWL, NWL-2 HWL, PWL
• Wireline Triple Tube: BWL-3, NWL-3, HWL-3, PWL-3
• Conventional: BV, NV, NV-2, HV, PV, NWD4
• Conventional Triple Tube: NV-3, HV-3, PV-3
• DCDMA: WM, WG
• Large Series DCDMA: 2-3/4” x 3-7/8”, 4" x 5-1/2", 6" x 7-3/4"