1.Roller sealed bearing insert tooth bit
2.Meet with API Spec7-1 ISO 9001:2008
3.Cover almost all IADC code
2.Meet with API Spec7-1 ISO 9001:2008
3.Cover almost all IADC code
4.Center drill bit
5.IADC code suitable for different formations
6.High temperature and wear resistance
7.Good quality and resonable price
8.Long work time
About us
Hejian Wanxiang Drilling Equipments Co. Ltd.
We produce the drilling bits according to our customers requirements strickly with advanced equipments 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 |