Prevents unintentional startup Press the locking switch to start the machine, to avoid accidental start of the machine caused by ordinary accidental touch or naughty children.

Effectively prevents wood chips from splashing The flaps on the chain can be freely adjusted to the diameter of the trunk to increase the cutting diameter while preventing wood chips from flying.

One-touch adjustment of slack and tight knuckle Knob to adjust the chain tightness, easy to adjust the chain tightness to avoid loosening and falling off or over-tightening.