6 3/4″ IADC742 Tricone Bit
IADC: 742
Bit Diameter: 171mm(6 3/4”)
Pin Connection: 3 1/2”API
Circulation Type: Jet Air
Production Weight: 20KG（44Lbs）
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealedbearng/Open Bearing
Cutting Structure:Inner And Nose Rows Ovoid-Gauge Rows: Ovoid-Heel Rows Round
