Don Phillipson wrote:
"mm" wrote in message
...

What size string for a string trimmer?
. . .
Is there a problem using string too thin? Or too thick? How do I
know what to use?

You should use the thickest that will auto-feed on demand.
Thinner string both erodes faster in use and is more prone
to jam on the supply reel.

OTOH, for light grass, etc., instead of heavy weeds, it can cut faster
and cleaner...

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