With a reportedly heavy-duty two-cycle engine plus a variety of blade sizes/configurations, this Hand-Held Gas-Powered Trencher is designed to create a clean, accessible trench, even through tough soil and roots. With dual blades affixed, the tool can reportedly dig a V-trench that's 12 inches deep and 51/2 inches wide at the top. Remove one of the blades (either side) and it is designed to excavate a thin-line trench for such things as garden-bed edging or wire/waterline installation.