This is my father showing how to sharpen a chainsaw the right way. He has been cutting wood for a very long time and knows what he is talking about.sometimes in life the best information comes from older people :) follow me www.facebook.com/MR-Eastcoastman-1489373284705406/ www.youtube.com/channel/UC8M0MjMWmOevZ1b5a6yVIgg Click link for merchandise amzn.to/1Jx8piQ Thanks for watching :)