CJ-7
ArboristSite Operative
I finally had to touch up the chain on my 018. When I bought the saw I also picked up a file and a Stihl battery operated grinder. Well, I started with the file and remembered why I bought the grinder. When I tried filing, it seemed that the file would never get a bite into the tooth of the chain as though the chain was harder than the file. It would just clean out the gunk and burrs but it never felt or looked like it was actually sharpening the chain, so I used the grinder and it worked fine. What's wrong?