The Grounds will trench 100 feet in approximately 5 minutes. Replaceable heavy-duty carbide bits and all steel construction make it very durable and dependable. The on-the-go depth adjustment enables the operator to dig a trench 2.5" wide from 0 to 13" deep with ease. The Groundsaw EZ9000 is ideal for installing irrigation, propane gas lines, silt fence, etc.