Husqvarna 575 XP pro grade chainsaw. I bought it brand new and have used it for cutting my personal firewood. Multiple bars n chains. 16in, 20in(on saw), 24in, 28in and 32in. I've used them all on this saw. From big Poplars, Cottonwoods and Elms to Lodgepole pine. It is very strong and cuts really well. I have taken very good care of it and only used ethanol free gas in it. I had back surgery and have 2 smaller saws that are easier for me to use for my current firewood needs.