Double Tube Reaming Shells for BQ NQ HQ PQ Core Drilling - 48mm to 122.7mm OD with Diamond & Tungsten Carbide Inserts
Our double tube reaming shells feature high-quality synthetic or natural diamonds reinforced with rectangular tungsten carbide inserts. These elements are strategically distributed throughout the matrix to maximize protection area, ensuring exceptional wear resistance and extended service life.
| Code | OD (mm) | ID (mm) | Reaming Shell OD (mm) |
|---|---|---|---|
| AQ | 47.60 | 27 | 48 |
| BQ | 59.6 | 36.4 | 60 |
| NQ | 75.3 | 47.6 | 75.7 |
| HQ | 96 | 63.5 | 96 |
| PQ | 122.2 | 85 | 122.7 |
| TNW | 75.3 | 60.5 | 75.5 |
| T2101 | 101 | 84 | 101.5 |
| T6131 | 131 | 108 | 131.5 |
| NMLC | 75 | 52 | 75.5 |
| HMLC | 98 | 63.5 | 98.5 |
| NWM | 75.3 | 54.7 | 75.8 |
Tungsten carbide inserts on the leading edge reduce matrix erosion by directing abrasive cuttings up the waterways, preventing travel across the diamond pad surface. This innovative design maintains hole gauge accuracy and ensures smooth drilling operations.
The longer physical design of these reaming shells requires appropriate inner tube extensions to compensate for length differences, delivering superior performance across all formation conditions from broken and abrasive to consolidated and non-abrasive.
- High quality drilling equipment manufacturing
- Comprehensive technical support and service
- Complete spare parts, tools and consumable materials
- Professional training and consulting services
- International sales and dealership network
We provide comprehensive 12-month warranty coverage for major assemblies and units. Our authorized dealers maintain service centers for warranty execution, after-sales support, and equipment repair. Client staff receive theoretical and practical training on equipment operation and work execution.
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