Description
The HOC Drilling Drag Type Underreamer is designed to have a larger expansion ratio for milder applications that require circulation through the tool.
Features and Benefits:
- Designed with the piston and actuator as a single component.
- The tool operates with minimal moving parts.
- Cutters actuate in a scissor motion.
- Hydraulically expandable with pump pressure.
- Reverse jetting actuation assures a full gauge hole and increased cutter cleaning and life.
- The DDT is designed to utilize PDC or HOC’s ADD cutters.
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