GeoRipper GR620 Trencher 2-Stroke Belt Driven Makita Engine (Series 6) with maximum 20" digging depth (20) is engineered for industrial performance. The GeoRipper 620 is powered by a 61cc engine with a full 4.4 HP for everyday narrow trenching applications. It’s engineered to start easier and vibrate less. The compact and efficient GeoRipper 620 is an ideal digging solution for irrigation, root barrier, landscape lighting, and other pipe and wire installations.