I've been sharpening 3/8" saw chain with a 7/32" file. I was looking at some information from Stihl and they make a 13/64" file which they recommend for 3/8" chain. Which is th right one? Are there any advantages to using the smaller file?
My Stihl dealer always gives me 13/64th's with my chain. I have used both and noticed the following. When cutting clean wood the 13/64 is a little fast and stays nice and sharp. The smaller file gives a more aggressive cutting edge, however it dulls more easily than more bluntly files 7/8ths filed chain in dirty wood. I keep a 7/8th'sfiled in the box for punky dead wood and stumping.