About us
Hejian Wanxiang Drilling Equipment Co., Ltd is a professional manufacturer & distributor of drilling tools and equipment in China.
We have many years' experience in research and production of petroleum equipment. With flexible company structures and advanced technologies, we have dedicated ourselves to supplying drilling industry with the best products available.
We take pride in offering prompt, courteous services to all facets of oilfield, water well, mining and construction industries.
Features and applications
1.Precise steel tooth bit
2.Full length/surface teeth hard facing
3.Optimized profile and higher rate of penetration.
4.Better steel in use and longer stable drilling hours.
5.Good wear-resistance
6.Higher stabiltiy.
Our advantage
1.Good quality,reasonable price.
2.ISO9001:2000, ,API certified.
3.Timely delivery.
| No | Sizes Available | |
| Inch (in) | Metric (mm) | |
| 1 | 7 7/8 | 200.0 |
| 2 | 8 1/2 | 215.9 |
| 3 | 9 1/2 | 241.3 |
| 4 | 12 1/4 | 311.1 |
| 5 | 17 1/2 | 444.5 |
| No | IADC Code | Recommendation | |
| WOB(KN/mm) | Rotary Speed(rpm) | ||
| 1 | 117 | 0.35~0.8 | 240~80 |
| 2 | 127 | 0.35~0.9 | 240~70 |
| 3 | 437 447 | 0.35~0.9 | 240~70 |
| 4 | 517 527 | 0.35~1.0 | 220~60 |
| 5 | 537 547 | 0.45~1.0 | 220~50 |
| 6 | 617 627 | 0.45~1.1 | 200~50 |
| 7 | 637 | 0.5~1.1 | 180~40 |
