Kohler Powered Y-173 Two Man Earth Auger Powerhead By ThunderBay Powerful Kohler Courage 173cc 8.0 Foot Pound 4 cycle engine delivers years of performance Heat treated gears set in a cast aluminum gear box deliver smooth power Tubular steel frame protects the engine and transmission during transport as well as when in use Rubber hand grips reduce vibration for a more comfortable grip Drills holes up to 14 inches in diameter