A step up in power over our 10 HP model, the 12 HP DRŪ CHIPPER features a 14"-diameter, 3/4"-steel, 33-pound flywheel, a 14-gauge steel chipper hopper, and a single chipper knife. The 12 HP Tecumseh Industrial/Commercial engine also has a cast-iron cylinder sleeve for long-wearing operation, and Overhead Valves for extra power and durability. Please Note: The large displacement of this engine does require some strength to hand start, but it's also available in Electric-Start. (Shown with optional tow-beam stand.)