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Hole Opener offers Bottom Hole Assembly (BHA) components such as subs, torque reducers, float subs, float valves, and more. We've got the BHA parts you need.
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  • SPB (Z-bit)

    The HOC Spherical Pilot Bit was created for guiding well bore enlargement tools in a variety of applications.

    Features and Benefits:

    • Replaces conventional bull nose in order to avoid "stabbing" into washouts down hole.
    • The unique off-set cutter design is used to prevent side-tracking while borehole enlarging down hole on wiper trips.
    • Rolling motion of cutter enables the SPB to work its way into pilot hole.
    • Followed by a hole opener or underreamer to open hole to full gauge.
    • Jet nozzle in shank keeps cutter teeth clean.
    • Available cutting structures: Sealed Bearing Mill Tooth and Sealed Bearing TCI cutters.

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