Categories: Mill Tooth Tricone Bit, Vertical Drilling Series
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| RPM(r/min) | 150-60 | ||
| WOB(KN) | 93-295 | ||
| Formations | Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, medium soft limestone, medium soft sandstone, soft formation with harder interbeds, etc. | ||
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