1) Max. cutting diameter: 550mm 2) Air-cooling single cylinder, 2-stroke 3) Displacement: 52cc 4) Two-cycle oil / gasoline mixing ratio: 1:25 5) Rated output power: 2,800W 6) Idling speed: 2,800r/min 7) GW/NW: 7.6/7.1kg 8) Meas: 48*26*26.5cm Suitable for cutting log / wood Brake system, safe operation Light operation Shock absorption system, easy operation General accessories: guide bar, chain, file, plug wrench