bit. It is applicable for down hole power drilling tools and high speed rotational drilling.We offer a variety of tricones, from sealed bearing button(TCI) bits to open bearing steel tooth bits in a wide range of sizes, in new, rebuilt, and unused/surplus.
1. Superior Performance
2. Lower Cost
3. Reliable bearing system
4. Optional Sizes
4. Optional Sizes
| 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 |
