Fredman said:My old man used a grinding wheel saw sharpener to sharpen the neighbors and his chains, but I wouldn't let him touch mine. If you want to use a dremel, go right a head. The problem with that is that you are heating up the chain and you are taking the temper out of it. You will have to sharpen it more often than if you would do it by hand. A dull knife will do more injuries and that goes along with a dull saw too.
Nope, don't heat nothing. 2 or3 steady quick passes and done. It ain't on there long enough to hit nothing.
I am guessing you are either guessing and assuming it heats & take the temper out, or made the mistake personally.
I haven't had that problem, and it last damn near as long as a new chain.
There is more than one way for things to be done. Just because folks find a faster, easier way, doesn't make it a worse way.
Have a nice day.