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.Continue Reading
Bible verse of the day
As thou knowest not what is the way of the spirit, nor how the bones do grow in the womb of her that is with child: even so thou knowest not the works of God who maketh all.
