Published On Sep 17, 2015
See the updated video: • What you need to know about drilling ...
Here are some horizontal directional drill (HDD) techniques when working with hard rock.
Working Conditions: Hard Rock.
-Step 1: Pilot Bore. Tool: Dual Rod Drill Head. Technique: Position Bent Sub for Steering.
-Step 2: Pullback. Tools: Hole Opener, Swivel.
-Result: Bore Complete.
show more