WATER-POWERED DRILLING FOR UTILITY HOLES IN MINES As in all underground mines, there was a need for long utility holes at LKAB Malmberget. The Wassara water powered DTH drilling system is the preferred method when connecting diffe- rent sub-levels with electrical service, communication, water drainage etc. LKAB Wassara AB | Box 1067, SE- 141 22 Huddinge | www.wassara.com STRAIGHT FORWARD DRILLING Accuracy and performance Utility holes are

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