GeoRipper 616 MiniTrencher: The lightest in the mini trencher line up starting at 31 lbs. 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. It also has innovative features like Stratified Air Scavenging (SAS) that recovers up to 75% of unburned fuel to reduce fuel consumption, and a cyclonic air intake that discards larger debris for increased air filter life – and less maintenance. The compact and efficient GeoRipper 616 is an ideal digging solution for irrigation, root barrier, landscape lighting, and other pipe and wire installations that require 16" or less in digging depths. Your lighter alternative to digging. Why go heavier if you don't have to? The lightest mini trencher you will ever need!