"...Are you certain the saw calls for .050 chain gauge ?..."
That's what my search turned up, when I needed my 1st replacement chain for it. An Oregon s45 or 91PX045G was recommended. I didn't see much difference. So I ordered the s45. Easier to remember.
Worked just fine. But it's getting pretty dull now.
https://www.oregonproducts.com/en/pa...%5D.value=true
https://www.loggerchain.com/Kobalt-5...-Kobalt-12.htm
https://www.amazon.com/Oregon-Chains.../dp/B00O2DKZK6
But, I'm glad you mentioned it. Looks like the Dewalt 12" does take the .043 chain. Oregon 90PX045G or R45.
https://www.oregonproducts.com/en/pa...%5D.value=true
So, if the Kobalt will accept the Dewalt bar, I suppose I'd need the .043 chain.
I just pulled up a forum where they said you could run the .050 chain on the .043 bar. That don't sound right. I don't have a clue.
"...A regular . 325 050 chain WILL work fine in a narrow kerf bar. You just can't do it the other way (i.e. run a narrow kerf chain on a regular bar)..."
Likewise, I suppose that if the Dewalt saw will accept the Kobalt bar, I'd need the .050 chain. Might see if that will work & how it cuts, when the new chains come in.
Have read that some small saws use the .043 bar/chain so that it will take less power to cut thru the wood. But, the Kobalt seems to cut OK, with the .050 chains.
Hey, it's just another of the many things I didn't know about chainsaws.
Oh well, at least I now I know a little more than I did before I started all this.