Model SGR1500 Stump Grinder-420cc 15hp, 12″ Height/10″ Depth. 【Power】 The SGR1500 adopts recoil starting Ducar 420cc 15HP 4-stroke single cylinder air-cooled OHV gasoline engine. Our main products include wood chipper, sawmill,wheelbarrow, tree stump grinders, log splitter, small trenchers, small backhoes, lawn mowers, and other accessories for tractors or skid steer.