Spiral Stabilizer Subs

For dramatically improved accuracy, stability and on-target drilling, choose Harlsan spiral stabilizer subs.

Australian RC Stabilizer Subs

In developing the Spiral Stabilizer Sub Harlsan utilized cutting edge manufacturing technology to perfectly combine the role of Dig-out and Stabilizer Subs.

The spiraling hard faced wear pads track an exact curve around the body of the sub. Results from extensive operational testing show the preciseness of this spiral enables stability and accuracy during drilling operations that isn’t obtainable with other subs.

As well as keeping deep Reverse Circulation holes on target the Harlsan Spiral Sub also significantly reduces drill string chatter.

Australia’s Toughest Stabilizer Subs


This unique precision sub has enabled many of our customers to achieve drilling results that were otherwise unobtainable using conventional RC Dig-out or Stabilizer Subs.

Contact Harlsan today to find out more about the Spiral Sub and our full range of Dig Out Subs.

    RC Spiral Stabilizer Sub Product Brochure

    Download the Harlsan Reverse Circulation Spiral Stabilizer product brochure for a complete overview of the features and benefits that our equipment will bring to your drill rig.

    Harlsan RC Spiral Stabilizer Sub Brochure.pdf (244kb)


    “While drilling 360m deep RC precollars we experienced problems with deviation of more than 5 degrees at the end of hole. The Harlsan Spiral Sub dramatically improved accuracy, enabling us to keep the holes within 1-2 degrees.”

    John Bartle, Operations Manager –  Kennedy Drilling

    Stabilizer Subs Specifications

    Precision Cut Threads

    We support the drilling industry’s most popular threads, and can even custom make one to your needs.

    The most popular threads we support:

    1. Remet
    2. Metzke
    3. RRE
    4. ARDX

    Full Range of RC Subs

    Saver, Dig-out, Bit, Adapter, Screen, Bleed-off, Vacuum Subs and more.

    Customised Options

    Hard-facing, spanner flats & wrench slots as required.

    Other Subs & Threads

    API, Cubex & other subs available, customised to your specifications.

      Large Stock Range

      Harlsan have a large range of subs in stock for immediate dispatch.

      Australian Made Toughness

      Manufactured with premium 4140 alloy steel that ensures long wear life.

      Subs Ordering Information


      From Africa through to Asia, Eastern Europe through to the UK, and Canada through to South America. We can supply you with robust and productive spiral stabilizer subs.

      For pricing, immediate supply or customised orders call us on +61 8 9021 1288.

      Get your engineered drilling components and consumable items on time, on budget and on track with Harlsan’s manufacturing services. Call us now or request a quote.

      Expert Assist


      Nick Sattin

      Location: Perth
      Business Development Manager

      Call Nick: +61 437 341 111
      Email Nick: nick.sattin@harlsan.com.au

      Matt Bevan

      Location: Kalgoorlie
      Operations Manager

      Call Matt: +61 409 089 040
      Email Matt: matt.bevan@harlsan.com.au