273 AIRS622 roller cone bit
These bits with open bearings and central flushing with air or water-air mixture are designed for drilling blast holes. The bits of this line can have either journal bearings (the bits ranging from 5 1/8" to 6 1/4") or roller bearings (the bits ranging from 6 1/4" to 15 1/2"). They show high performance due to high-reliability bearing elements, cutting structure and bit body protection.
Cutting structure
The bits of this line have TCI or milled teeth as their cutting structure. The gauge is protected with TCI.
Shirttail and leg protection
Depending on the formations abrasiveness shirttail and leg are hardfaced along the leading edge and protected with TCI.
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| Availability: | In stock |
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