.50 or .58

[fruitcakesa]

My Jonsy 2171 came with .058 and I have a lot of chains for it so when I bought the Husky 562 I specified .058 so I can use them on both saws.
My Jonsy 2255 is .050 but as that is now the 3rd saw it does not get as much use. as it did before.

 

[John_Mc]

All of my Jonsered and Husqvarna saws came with .058". That was the most common gauge in my area for saws other than Stihl. It really seems to be a regional thing.