Friction Welded Drill Rod reduce one side rubbing, hole deviation and leakages at joints. The Drill Rod has the feature that no welded layer will be visible and therefore less tolerance in the drill rod guide. The Drill Rod has the feature that traction force and strength will be increased by 40%. The Friction Welded Drill Rod is available in various sizes such as 3"/ 3.5"/ 4.5"/ 5.5"/ 8".
