Stumps will soon be nothing more than a memory with a 3 inch deep cut on each pass. The Holt Eraser HGW30 is a self-propelled stump grinder designed for 28 inch above to 12 inch below grade cutting. With an impressive 85 degree swing arc that equals a 46 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 30 HP - Kohler 999 cc Root Size 19 Number of Teeth 16 Tooth Construction Green Fuel Gas Engine Cooling Air Cutting Wheel Speed 1800 RPM Cutting Height-Above Ground 28 Cutting Depth-Below Ground 12 Maximum Cutting Depth-Per Pass 3 Maximum Horizontal Cut 46 Swing Arc 85 Over Torque Protection Relief Valve Input Speed 3300 RPM Control Manual Drive 2 Wheel Width 35 Length 105 Weight 1820 Lbs.