
Base Info
- Model NO.:roller cone 8 1,2′′ IADC 637
- Standard:JIS, AISI, API
- Length:Jobber-length
- Type:Twist Drill Bit
- Material:Tungsten Carbide
- Superior Drilling Tools:Superior Roller Cone
- Trademark:superior
- Transport Package:Wooden Case
- Specification:accordingly
- Origin:Hejian, China
Description