Pilot drilling or media drilling is the first step in raise boring, but we can also use this method separately to create smaller holes with a diameter of (9 7/8″ to 15″) for e.g. cable/hose routing or drainage, etc.
These types of holes are performed by all our rigs and are planned specifically based on the conditions you have with space, length and requirements for accuracy.
With our largest rig, it is possible to drill up to 1100m long media holes.
Please contact us for more information regarding pilot drilling.