There is a very easy way to straighten it if it's not crimped.. I don't think a muffler shop (Custom muffler shops bend pipe all the time) will have dies that small (in fact I know they won't) but a plumber might. And that's all it takes.
If the shaft, normally, is straight, not tapered, and if the end cap can be removed or if the end cap is the same outside diameter as the shaft you can slip a spring of the same ID as the shaft is OD over it, this prevents crimping on gentle bends.
That's also how the die method works
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