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Drill-holes for geothermal probe installations
For these special drilling applications, we offer the STDS-Jantz double-head drilling system with hollow stem auger, borehole lining and drill rods. This drilling process offers a big advantage – it prevents possible borehole collapse in weak soil layers and where groundwater is present. Hollow stem augers have also proven themselves in other geological situations.
We will be happy to provide all components and accessories, such as drill bits, hydraulic drilling drives, preventers, flushing heads and special designed boring tools, to suit your requirements.

To suit individual requirements we can supply you with Tri-lock, hexagonal or octagonal connectors and drill bits with various combinations of teeth and pilots to suite your drilling conditions and rigs.