Base Info
- Model NO.：16 ′′
- Customized：Customized
- Standard：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：IADC 637
- Origin：Hejian, China
Description