The TrencherPro is a light weight, compact, and extremely versatile trencher. Capable of digging trenches 16" or 20" deep for irrigation, wire/cable installation, landscaping and tree root removal. The TrencherPro utilizes the top-of-the-line Husqvarna K770 74 cc, 4.7 HP power head. The TrencherPro includes 2 cutting chains capable of ripping through tree roots, clay, sand and rocky soil conditions. Depending on the soil conditions the TrencherPro will cut a trench 1 3/4 (standard chain) or 2 1/4" wide (wide chain sold separately). The TrencherPro Cart is not a must but is an extremely helpful add-on. The trencher itself is very maneuverable but can be tiring to use on long stretches. The TrencherPro Cart allows the trencher to be used without holding it which can be difficult for some. The trencher attaches in seconds to the trencher cart and will increase productivity, reduce effort, and help maintain a consistent depth.