Kondasin International Co.,Ltd.
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Wireline Drill Rods Geological Drill Pipe High Straightnes High Tensile Steel Core Drilling
1. Core drill rods are used in coring drilling project, geological drilling, ore drilling etc,they are primarlly used in deep drilling.
2. We choose high grade steel material thru heat treatment of the steel tube & thread joint to improve the steel material streagth and insurance the thread wear life.
3. Drill rods are available in DCDMA sizes AW, BW, NW and HW with tapered threaded tool joints in sizes AWY, BWY and NWY.
4. Drill rods are also available in Wireline sizes A, B, N, H, P and Metric sizes 42mm, 50mm, 60mm, 70mm and 90mm.
| Size | Outer Diameter (mm) | Inner Diameter(mm) |
| AQ | 44.7 | 37.3 |
| BQ | 55.7 | 46.1 |
| NQ | 70.0 | 60.2 |
| HQ | 89.0 | 78.0 |
| PQ(PHD) | 114.5 | 101.5 |
| AW/AWJ/AWY | 43.7 | 30.7 |
| BW/BWJ/BWY | 54.0 | 38.0 |
| NW/NWY | 66.8 | 51.0 |
| HW | 89.0 | 71.0 |
| 42mm | 42.0 | 30.0 |
| 50mm | 50.0 | 37.0 |
| 60mm | 60.0 | 48.0 |
| 70mm | 73.0 | 54.6 |
| 90mm | 89.0 | 69.0 |
| S75 | 71.0 | 61.0 |
1. High precision in size and shape
2. Good low temperature toughness
3. Excellent comprehensive mechanical properties
4. High connection strength and sealability
5. Large inside diameter of tool joint
6. High torque resistance
7. High fatigue strength and long fatigue life