Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
To survive with high quality,to develop with non-stop innovation,to repute with thoughtful service,to brand with great sincerity
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1. 22 years focus on rock drill bits manufacture.
2. High quality steel.
3. High abrasion resistant cemented carbide.
4. Advanced heat treatment technics.
5. Professional vacuum sintering technique.
6. Factory direct sales with competitive price.
7. Sufficient stock with full types.
8. Perfect after-sales service. Free replacement is provided if there is quality problem with our products.
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---Product Information---
DTH drill rod
| OD(mm) | Wall Thickness(mm) | Length(m) | Thread Type( API Reg) |
| 76 | 6.5 | 2 | 2 3/8" |
| 76 | 6.5 | 3 | 2 3/8" |
| 102 | 10 | 2 | 3 1/2" |
| 102 | 6.5 | 5 | 3 1/2" |
| 102 | 8.5 | 5 | 3 1/2" |
| 127 | 6.5 | 5 | 3 1/2" |
| 127 | 8.5 | 5 | 3 1/2" |
| 127 | 10 | 5 | 3 1/2" |
| 114 | 10 | 2 | 3 1/2" |
| 89 | 6 | 2 | 3 1/2" |
| 89 | 8 | 2 | 3 1/2" |
| 89 | 6.5 | 1 | 3 1/2" |