Single cylinder,air-cooled,two stroke engine Various diameter of driller is optional Engine:1E44F-5Engine type :air-cooled, 2strokeDisplacement :49cc2-cycle oill/gasoline mixing ration:1:25Power :1.65KWCarburetter:Diaphragm typeFuel tank capacity:1.2LDriller diameter :100mm/150mm/200mm Earth auger GD4900