DTH Odex drilling system includes eccentric overburden and concentric drilling equipment, such as ring bit, central drill bit, guide device, casing shoe, casing tube, reamer, pilot bit etc., which will be matched with related DTH hammers. The application of DTH Odex casing system is suitable for drilling water wells, geothermal wells, short mircopiles, medium mini-type grouting hole of building etc.

Eccentric Overburden Drilling Equipment: Guide Device, Casing Shoe, Reamer, Pilot Bit.

Superior performance with stable and reliable characteristic, longer operation life and excellent anti-wear properties through hardening treatment of the part’s surface.

Concentric Casing System: Ring Bit, Central Drill Bit, Casing Shoe, Retainer Ring, Casing Tube, Pilot Bit.

The structure and principle of operation of Concentric drilling system can guarantee considerable reduction in downtime, fewer consumable and lower operation costs. Concentric drilling system can drill the hole at any angle. Theoretically, Concentric drilling system makes sure the hole in all formations such as gravel bed, sand bed and pebble bed etc. is considerably straight, the drilling speed fast and the drilling torque relatively small.