firesteel.com has sizes from 3/16 to 3/8. The 1/2 steel is no longer available. I was able to chat with Ron and said he had one left which he sold to me. Not very practicable for a PSK because of size and weight so this for my small collection of fire making tools and not my PSK. Pictures and report to follow once I receive it.
https://firesteel.com/categories/FireSteel-Tubes/goinggear.com sells the mischmetal steels in the raw. Roll your own with 1/2 x 12" mother of all fire steels! Does any know of a source for these aluminum tubes (or similar)?
http://goinggear.com/index.php?main_page=index&cPath=4 Thanks for the links. I see a couple of custom firesteel projects coming up...
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock