I can’t find the post that was made about lead sizes. It was really good and pointed out how labeled lead is often smaller or larger than stated.
I don’t know how that applies to mechanical pencils of various lead sizes. For example, will a 0.3 mm pencil be capable of serving lead thickness up to 0.4 mm and as low as 0.2 mm? We do know for a fact that 0.3 mm is really not that size, but 0.35 mm rounded down.
And with that in mind, I wonder what size guitar gauges would be appropriate for 0.3, 0.4, 0.5, 0.7 mm pencil lead sizes:
By the way, for those of us who are in the USA… there’s a seller on Amazon that makes these guitar strings available for pretty reasonable prices. At least for most of the gauges, it’s $0.89 and free shipping with Prime (or free with $35 purchase). Unfortunately some sizes are over $6 USD.
