Stumps will soon be nothing more than a memory with a 3½ inch deep cut on each pass. The Holt Eraser HGW60R is a self-propelled stump grinder designed for 36 inch above to 15 inch below grade cutting. With an impressive 82 degree swing arc that equals a 58 inch horizontal pass. The controls are easy to handle and can be dialed in for your specific needs with traction control adjustment and variable swing speed. Engine 60 HP turbo diesel 2,615 cc Root Size 22 Number of Teeth 20 Tooth Construction Green Fuel Diesel Engine Cooling Water Cutting Wheel Speed 1800 RPM Cutting Height-Above Ground 36 Cutting Depth-Below Ground 15 Maximum Cutting Depth-Per Pass 3.5 Maximum Horizontal Cut 58 Swing Arc 82 Over Torque Protection Relief Valve Input Speed 3000 RPM Control Wireless Drive 4 Wheel Width 37 Length 145 Weight 3950 Lbs.