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        • Product: 8 1/2'' Roller Cone Bit for Well Drilling
        • Model: T-006
        • Shelf time: 2016-04-11
        • Views : 33

        8 1/2'' Roller Cone Bit, IADC537, for water well drilling

        Specification
        Bit Size 8 1/2''--215.9mm
        Bit Connection 4 1/2'' API Reg.
        Bit Tooth Type Tungsten Carbide Inserts, IADC517
        Bearing Type Sealed Roller Bearing
        Seal Type O-ring Seal
        Make up Torque 16.3~21.7 N.M
        Nozzle Q'ty 3 NZ
        Operating Parameter
        Weight on Bit (Kn) 0.35~1.05 
        Rotary Speed (RPM) 140~60