The PowerROC T45 surface drill has a telescoping boom and drills holes from 3 to 5 inches in diameter.
The DM30 II fill the gap between some larger and smaller drill rigs in the range.
The LST1G+HD heavy-duty rig drills to 100 feet with an optional 4.25-inch hollow stem auger
The SmartROC D60 drill produces holes from 4.5 to 7 inches in diameter.
The radio remote controlled FlexiROC T20 has an upgraded rig control system.