Bit 250,8 (9 7/8) AIRP727 roller cone bit
These premium bits with sealed bearings are designed for drilling blast holes, flushing with air or water-air mixture. The bits of this line use journal bearing. They show high performance due to the seal, high-reliability bearing elements, cutting structure and bit body protection; this allows to achieve high performance results, especially in water-flooded wells.
Cutting structure
The bits of this line have TCI as their cutting structure. To improve the protection against gauge loss, there are TCI on the gauge.
Lubrication system
Bit lubrication system is designed to compensate grease consumption and pressure during long-term operation. It consists of a grease reservoir with a rigidly mounted cap, a flexible diaphragm, a metal canister protecting the diaphragm from breakage, and channels to connect the grease reservoir with friction areas in bearings.
Shirttail and leg protection
Shirttail and leg are hardfaced along the leading edge and protected with tungsten carbide inserts.
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| Availability: | In stock |
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