BTW/NTW/HTW Thin Wall Drill Rods
Hardrock thin wall drill rods are made to meet the standard of DCDMA, they are widely used in the wireline core drilling. 1, Size: BTW/NTW/HTW 2, Outside Diameter: BTW-56.3mm/NTW-73.3mm/HTW-91.3mm 3, Inside Diameter: BTW-48mm/NTW-64mm/HTW-81mm 4, Rod Material: 30CrMnSiA/XJY850 5, Service Life: 5000m 6, Length per Piece: 3m/1.5m
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Hardrock Thin Wall Drill Rods are made per the highest quality standard, and to exact specifications using advanced machining technology.
BTW/NTW/HTW Drill Rods, 3 meters Length for diamond core drilling.
They are widely used all over the world.
- Available in all standard drilling sizes: BTW, NTW, HTW
- Heat treated and quenching treatment of drill rods.
- High straightness and long service time
| Size | O.D.(mm) | I.D.(mm) | Weight/3m (kg) | Weight/1.5m (kg) |
| BTW | 56.3 | 48 | 15.65 | 7.83 |
| NTW | 73.3 | 64 | 22.91 | 11.46 |
| HTW | 91.3 | 81 | 30.75 | 15.38 |
