Steel Milled Tooth Rock Drill Bit For Well Drilling 114 Mm IADC 127
114 mm IADC 127 Steel Tooth Tricone Bit
We're Hebei Yichuan Drilling Equipment Manufacturing.,LTD
First of all we want let you know that we are one of more than 20 years manufacture located in Hejian City Hebei China.
We have so many clients from all over the world and not with the lowest price win clients' choose, we depend on the quality to do business for every client. We know business not easy and get one client also very difficult so we must service in good faith. So please remember our promise that what you pay what you gain. We will honest offer the equal quality goods for you.
How to choose a model
| IADC | Rock formation | WOB (KN/mm) | PRM(r/min) |
| 116/117 | Low compressive strength, high drill-ability and extremely soft formation, like soft shale, clay,etc. | 0.35~0.90 | 180~80 |
| 126/127 | Low compressive strength, high drill-ability and soft formation, like shale, clay, soft limestone, salt rock, etc. | 0.35~1.00 | 180~80 |
| 136/137 | Soft to medium soft with low compressive strength or soft with hard interlayer, like anhydrite, soft limestone,sandstone, etc. | 0.37~1.05 | 130~60 |
| 216/217 | Medium hard formation with relatively high compressive strength and hard interlayer, like hard shale, sandstone, limestone, etc. | 0.5~1.20 | 100~50 |
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