We use Stihl flat topped chisel.
We don't use safty chain because we can't use our fil-o-plate to file drags. How do they expect you to maintain a chain if you can't file the drags?
We have a grinder that we bought expecting to use once in a while to even up teeth or to use after trying to saw rocks or chokers. Seems that once you use it on Stihl chain, the teeth are too hard to file. We barley spark them now and never use a file except on the drags. Never had any luck grinding drags, I want them perfect and filed for the individual tooth and for either soft or hardwood.
Noble