Trigger Start/Stop Switch - stops motor when released * Safety Trigger Lock out - prevents accidental acceleration of the saw motor. The trigger cannot be squeezed unless lock out button is depressed * Low Kickback Chrome Chain - helps significantly reduce kickback, or the intensity of kickback, due to specially designed depth gauges and guard links * Automatic Chain, Bar, Sprocket Oilier - delivers even flow to bar and chain * No load speed: 5500/min