Home Library Forestry Chainsaws 9 Safety features of a chainsaw ( Muffler ) 9 Safety features of a chainsaw ( Muffler ) Please login/register to the Hub in order to view contents. MORE VIDEOS IN SECTION 9 Safety features of a chainsaw ( rear hand guard ) 9 Safety features of a chainsaw ( throttle lock ) 9 Safety features of a chainsaw ( Off switch ) 9 Safety features of a chainsaw ( Chain break ) 9 Safety features of a chainsaw ( Hand mit ) 9 Safety features of a chainsaw ( spark arrestor ) 9 Safety features of a chainsaw ( anti-vibration mounts ) 9 Safety features of a chainsaw ( Chain catcher )