21V, 2.0ah lithium battery
max cutting diameter:25mm
brushless motor
Rated Voltage: 20V
Battery Capacity: 2.0-4.0Ah
Max Air Speed: 270km/h
Max Wind Capacity: 550m/h(330CFM)
Brushless motor
6"/8", 1/4" chain pitch
with oil tank, rubber grip
tool-free chain tension adjust knob