Specific controls, functionality and operating instructions can vary by brand, model and year. It is up to you, the operator, to ensure your own safety. This documentation is secondary to the manufacturer’s instructions provided to you within the toro 4 stump grinder instructions manual located on each machine. Rent a 36in Barreto, Ditch Witch or Boxer trencher from The Home Depot Rental. 36 inch trenchers create a inch deep, 6-inch wide trench for utility installation and more.