NQ Surface Diamond Drilling Core Barrel Assembly
PEERCHEER offers standard NQ surface diamond drilling core barrel for use with NQ/NRQ/NT rods. NQ core barrel is ideal for use in most surface drilling conditions and is available for application in standard DCDMA N size hole. It consists of the NQ head assembly , NQ inner tube components and NQ outer tube components.
Product Details
Parameter
NQ surface diamond drilling core barrel configuration:
1-NQ Head Assembly
2-NQ Inner Tube
3-NQ Stop Ring
4-NQ Core Lifter
5-NQ Core Lifter Case
6-NQ Locking Coupling
7-NQ Adapter Coupling
8-NQ Landing Ring
9-NQ Outer Tube
10-NQ Inner Tube Stabilizer
11-NQ Thread Protector
NOTE：
(1)NQ core bit and reaming shell are not included.
(2) 1.5m/5ft and 3m/10ft NQ core barrels are available.
(3)The newest MKII spearhead NQ wireline coring core barrel is also available.
NQ wireline coring core barrel Parameters Table
| NQ Nonimal Parameter | mm | Inches |
| NQ Hole Diameter(approx.) | 75.8 | 2.984 |
| NQ Core Diameter(approx.) | 47.6 | 1.874 |
| NQ Core Bit Set OD(approx.) | 75.3 | 2.965 |
| NQ Core Bit Set ID(approx.) | 47.6 | 1.874 |
| NQ Reaming Shell Set OD(approx.) | 75.8 | 2.984 |
| NQ Outer Tube OD | 73.0 | 2.874 |
| NQ Outer Tube ID | 60.3 | 2.374 |
| NQ Inner Tube OD | 55.6 | 2.189 |
| NQ Inner Tube ID | 50.0 | 1.969 |
