Engine: 2-stroke, air-cooled Displacement: 49cc Rated output power: 1700W Drilling rotational speed: 170rpm Two-cycle oil /Gasoline mixing ratio: 1: 25 Drill Dia.: 100/150/200/250mm Packing: 62x41x31cm (engine) 22x22x82cm (150mm drill) Packing: 83.5x55x28.5cm (Engine with 150mm drill)