13 5/8" FSA517G , TCI Tricone Bit , TCI Bit , Sealed Journal Bearing SIZE AVAILABLE Form 3 7/8inch to 18 1/2inch RECOMMENDED DRILLING PARAMETERS FOR ....
IADC 517 , Sealed Friction Bearing , With Gage Protection , TCI Tricone Bit , Tungsten Carbide Insert Bit , TCR Bit SIZE AVAILABLE Form 3 7/8inch to ....
TCI Tricone Bit , Sealed Journal Bearing , With Gage Protection, Vertical Well Drilling Bit , Rock Roller Cone Bit SIZE AVAILABLE Form 7 7/8inch to 17 ...
Rubber Sealed Roller Bearing , With Gage Protection , TCI Tricone Bit , Fluid Circulation , Drill with Mud Pump SIZE AVAILABLE Form 3 7/8inch to 18 1....