Rerun 4 1/2″ 617 TCI
Sealed Bearing
Bit Size: 4 1/2″
Bit Type: TCI Bit
TCI Inserts: Chisel
Bit Make: Hughes
Bit Model: STX40
IADC Code: 617
Pin: 2 3/8″
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Rerun 4 5/8″ 537 TCI
Sealed Bearing
Bit Size: 4 5/8″
Bit Type: TCI Bit
TCI Inserts: Chisel
Bit Make: JZ
Bit Model:
IADC Code: 537
