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7 7/8"(200.0mm) IADC537 Roller Cone Drill Bits

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Introduce

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Specifications
Diameter  7 7/8"(200.0mm)
Bearing Type  Elastomer sealed bearing
Tooth Type  TCI(Tungsten Carbide Inserts)
Circulation Type  Mud fluid
Thread Connection  4 1/2 reg pin
Gauge Protection  Available
Shirttail Protection  Available
Operating Parameters
RPM(r/min) 120-50
WOB(KN) 90-200
Formations Soft to medium formation with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc.

 

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