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6 1/2″(165.1mm)Pilot Bit IADC637G Metal-face Sealed Bearing

Categories: HDD Series, Pilot Bit

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Description

Specifications

Diameter	6 1/2″
Bearing Type	Metal-face Sealed Bearing
Tooth Type	TCI
Circulation Type	Mud Fluid
Thread Connection	3 1/2 Reg Pin
Gauge Protection	Available
Shirttail Protection	Available

Operating Parameters

RPM(r/min)

180~40

WOB(KN)

76~167

Formations

Hard formations with high compressivestrength, such as hard shale, limestone, sandstone, dolomite, hard gypsum, chert, granite, etc.

In hard rocks drilling, working life of pilot tricone bits is very important to guarantee crossing fisnished at one time. Metal sealed bearing tricone bits is the only one choice to drill very hard and very long rocks crossing.