ng_reader wrote:
....
And, as a follow up, if I may, youtube showed me how to sharpen with
a tool. Doesn't look that hard, but if the tool is as much as a new
chain, well, you do the math.
....

http://lawn-and-garden.hardwarestore...and-tools.aspx

It seems sharpening a chainsaw chain has become another of the urban
legend items of incredible difficulty only a pro can do...

As someone else noted, a simple chainsaw file will do quite nicely
although he didn't mention the requisite guide.

Be sure to determine the proper diameter for your particular chain.

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