I find on the old style stihl caps (including my ms660), if you never over tighten the cap(I just hand tighten almost as tight as I can get it with my fingers) they dont need a tool to loosen them. Once somebody overtightens one it seems the fit changes and they have to be tightened more and then you need the scrench. I"ve replaced overtightned gaskets and it seemed to retain the fit. The Huskies I've been around for awhile seem to start leaking around the fuel cap eventually then it takes an oversize o ring to get a seal and it makes it hard to tighten and remove the cap. Is the 395 differant then the 346?