200 mm (7 7/8") Tricone Bit with Carbide Inserts (TCI), open bearing, IADC 512, 4 1/2 API Reg — UDT

200 mm7 7/8″

200 mm (7 7/8") Tricone Bit with Carbide Inserts (TCI), open bearing, IADC 722, 4 1/2 API Reg — UDTTricone Bit with Carbide Inserts (TCI)

IADC 722 · Open bearing

UDT

200 mm7 7/8″

200 mm (7 7/8") Tricone Bit with Carbide Inserts (TCI), open bearing, IADC 622, 4 1/2 API Reg — UDTTricone Bit with Carbide Inserts (TCI)

IADC 622 · Open bearing

UDT

190.5 mm7 1/2″

190.5 mm (7 1/2") Tricone Bit with Carbide Inserts (TCI), sealed bearing, IADC 527, 4 1/2 API Reg — MGTricone Bit with Carbide Inserts (TCI)

IADC 527 · Sealed bearing

MG

215.9 mm8 1/2″

215.9 mm (8 1/2") Tricone Bit with Carbide Inserts (TCI), sealed bearing, IADC 537, 4 1/2 API RegTricone Bit with Carbide Inserts (TCI)

IADC 537 · Sealed bearing