1. Used as a great harder formation or simply hard formation drilling tool
2. Many shapes and sizes having multiple features and cutting structures to combat downhole diversities you may encounter
3. Sizes ranging from 3-7/8" threw 26" and can provide larger sizes on request
4. Typically sealed bearing
5. All come with regular API connections
6. The products feature 3 or 4 jet ports, the 4th being an optional center jet.
7. All jet sizes to meet your TFA (Total Flow Area) requirements
8. Used in the oil, gas, and water well industries
9. We offer both standard high quality and premium quality re-run as well as NEW and SURPLUS NEW TCI bits.
Available size
No | Bit Size | |
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 |
Our advantage
1.Good quality,reasonable price.
2.ISO9001:2000, ,API certified.
3. Timely delivery.
2.ISO9001:2000, ,API certified.
3. Timely delivery.
