8 3/8" FA437GT , Oil Well , Drill Bit , Sealed Journal Bearing , TCI Tricone Bit
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8 3/8" FA437GT , Oil Well , Drill Bit , Sealed Journal Bearing , TCI Tricone Bit PRODUCT SPECIFICATIONGS Bit Size : 8 3/8" ( 212.7 mm ) IADC : 437 ...
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