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The low velocity of the return water minimizes the wear on the hammer guide ribs, enabling a tight clearance between the hammer and the wall – giving the drill string optimal stability.

Extraordinary accuracy

Accuracy is the most crucial factor for the profitability since it dictates borehole length and scale of the operation. In this respect Wassara is outstanding, with a borehole deviation of normally less than 1%, compared to 10–20% with other technologies. Wassara also drills smaller diameter holes efficiently.



1. With Wassara    2. With other solutions


The main challenge is drilling accuracy. Wassara normally keeps the holes within 1% deviation!

  • Consistent fragmentation and dilution for optimal flow and processing.
  • Safer mining thanks to outstanding accuracy even for the longer holes.