IADC Code: 635
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealedbearng/Open Bearing
Bit Diameter: 280mm(11'')
IADC Code: 837
Bit Diameter: 270mm(10 5/8'')
IADC Code: 637
IADC Code: 635
Bit Diameter: 270mm(10 5/8'')
IADC Code: 637
Type: MG635-216KL
IADC Code: 535
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealedbearng/Open Bearing
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