Wholesale API button rock roller drill bits IADC537 8 3/4" for deep well in the stock from China factory Main Features 1) Drill Bit Connection made according to API standard. 2) We can adjust the bit size according to your rig. 3) The best result can be obtained by using the steel-tooth bit in the soft stratum. If mining in hard formation, TCI tricone bitis recommended. 4) Proven cutting structures and bearing designs continue to deliver a superior level of performance and reliability. 5) Optimized hydraulics provide increased ROP by efficiently removing cuttings and ensuring engagement of new rock on every cutting structure rotation.
| Basical Specification | |
| Size of Rock Bit | 8 3/4 inches |
| 222mm | |
| Bit Type | TCI Tricone Bit |
| Thread Connection | 4 1/2 API REG PIN |
| IADC Code | IADC 537G |
| Bearing Type | Journal Sealed Bearing with Gauge Protection |
| Bearing Seal | Elastomer or Rubber/ Metal |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling, high temp drilling, deep drilling, motor drilling |
| Nozzles | Three Nozzles |
| Operating Parameters | |
| WOB (Weight On Bit) | 22,470-49,883 lbs |
| 100-222KN | |
| RPM(r/min) | 50~120 |
| Formation | Medium formation with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
