FEATURES • Automatic engine setting with AutoTune • Customize and control oil flow to meet any need • Interchangeable grip size, to perfectly fit your hand. • Quick connection to the climbing harness • Easily remove and replace the filter after cleaning • Stop switch automatically resets to ON so trimmer is ready for next use • Less filter cleanings with Air Injection® • The retaining function prevents loosing the bar nut. • Quickly and easily adjust the chain • Dampeners between the engine and chassis significantly reduce vibrations so you can work more comfortably • Easy to maintain with snap locked filter cover • Magnesium crankcase designed for professional use • Transparent fuel indicator makes it easy to check fuel level • Reduces the likelihood of injury due to kickback