8 3/4" FA447G , TCI Tricone Bit , Rock Bit , Sealed Journal Bearing With Gauge Protection , Tricone Bit PRODUCT SPECIFICATIONGS Bit Size : 8 3/4" ( .....
8 5/8" FA437GT , TCI Tricone Bit , TCI Drill Bit , Oil Well Drill Bit PRODUCT SPECIFICATIONGS Bit Size : 8 5/8 inch ( 219.1 mm ) IADC : 4 3 7 SERIES: ...
FA437G , TCI Tricone Bit , TCI Roller Cone Bit , Sealed Friction Bearing , Vertical Well Drilling , HDD Drilling SIZE AVAILABLE Form 3 7/8inch to 18 1...