| Packaging Details: | Wooden case; iron case; or according to customers requirements |
|---|---|
| Delivery Detail: | Generally within 7 days after recieved advanced payments |
Products details
1. Robber sealed bearing insert tooth bit
2. Cover almost all IADC code
3. Meet with API Spec7-1 ISO 9001: 2008
4. Robber sealed bearing
5. High temperature and wear resistance
6. Long work time
7. Good quality and resonable price
8. IADC code suitable for different formations





About us
We produce the drill bits according to our customers requirements strickly with advanced equipment to make the quality perfect.
Specification
IADC | 437 | 517 | 537 | 617 | 637 | 737 | |
WOB | KN/ mm (bit dia.) | 0.5-0.75 | 0.5-0.85 | 0.5-0.85 | 0.55-0.85 | 0.55-0.85 | 0.55-0.85 |
Lb/ in (bit dia.) | 2860-4280 | 2860-4860 | 2860-4860 | 3140-4860 | 3140-4860 | 3140-4860 | |
r.p.m | 70-45 | 70-45 | 70-45 | 70-45 | 60-40 | 60-40 | |
Size | Bit Type | |
In. | mm | |
6 | 152.4 | 517; 537; 617; 637 |
6 1/2 | 165.1 | 617 |
7 1/2 | 190.5 | 517, 537 |
8 1/2 | 215.9 | 437; 517; 537617637 |
9 1/2 | 241.3 | 437, 517537617637 |
9 5/8 | 244.5 | 517537 |
9 7/8 | 250.8 | 517537 |
12 1/4 | 311.1 | 437; 517; 537617637 |
17 1/2 | 444.5 | 517537 |