TEI can reconfigure existing rock drills for use when longer strokes are required. Our extended attachment provides the longest stroke possible while still allowing the drill to be transported while attached to the excavator. The mast offers a 25 ft (7.6 m) stroke with a 15 ft (4.6 m) rod-adder. The rod-adder has a positive grip that keeps the drill rod or auger in place regardless of the drilling angle. The TEI Extended Excavator Rock Drill can install a 40 ft (12.2 m) soil nail or micropile with only one operator.