AirSpade 2000 [HT144] Air Excavation Tools, 116 cfm with 4 ft. Barrel. Utilizing the power of compressed air, AirSpade 2000 uncovers underground objects, utility lines, or even sensitive tree roots without harm. Featuring the high performance, proprietary supersonic nozzle, AirSpade 2000 digs faster and more efficiently than competitive tools. Rugged, lightweight construction. Dead-man trigger ensures safe operation.