New 7 1/2″ 537 TCI
Sealed Bearing
Bit Size: 7 1/2″
Bit Type: TCI Bit
Bit Make: TZ
Bit Model: LW537GC
IADC Code: 537
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New 7 7/8″ 537 TCI
Sealed Bearing
Bit Size: 7 7/8″
Bit Type: TCI Bit
Bit Make: TZ
Bit Model: LW537G
IADC Code: 537 -
New 7 7/8″ 517 TCI
Sealed Bearing
Bit Size: 7 7/8″
Bit Type: TCI Bit
Bit Make: TZ
Bit Model: LE517G
IADC Code: 517
