Reverse Circulation Subs

From adapter subs, savers and blow down subs, we manufacture everything in house.


Australian RC Subs Manufacturer

Harlsan saver subs and adapters are made using European quality hardened 4140 alloy steel and manufactured using state of the art machining.

Our drilling customers depend on Harlsan precision manufacturing that ensures thread quality and compatibility every time.

From Saver Subs, Dig-out & Bit Subs to Adapter, Screen, Bleed-off, Stabilizer and Vacuum Subs, Harlsan can make it.

Australia’s Toughest Reverse Circulation Drill Subs


Drill more meters every day with Harlsan’s wide range of premium quality drilling subs

  1. Saver Subs
  2. Adapter Subs
  3. Dig-out Subs
  4. Bleed-off Subs
  5. Vacuum Subs
  6. Stabiliser Subs

RC Subs & Adapters Product Brochure

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

Harlsan RC Subs Brochure.pdf (244kb)


“When choosing Harlsan reverse circulation subs and adapters we know we will get premium quality subs every time, with threads that are always “spot on”. Harlsan also have a large range of the subs we need in stock and ready for shipping.”

Leon Marsh Drilling

RC 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. Westrod

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.

    Looking for Spiral Stabilizer or Dig-out Subs?

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

    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 RC 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.