The Anderreamer™ multi-cycle underreamer closes the underreamer multiple times during the course of a single run. With the ability to operate in demanding downhole environments, the tool may be cycled (open/close) up to 4 times. Cutter blocks tailored to the application ensure positive activation. The MC Anderreamer™ performs potential application above motor steerable BHAs not previously possible with a concentric undrreamer.


Simple Activation – A drop ball mechanism activates and deactivates the tool

Versatile – Underreams in numerous applications

DSI Cutter Blocks – Provide improved sweep, stabilization, load distribution, cutting structure, and wear resistance.