Gazz Posted May 8, 2023 Share Posted May 8, 2023 I have a few of these that are about 10' long, 1 5/8"d with a 5/8" thru hole. I can't remember what the other ends look like (buried deep in the stock rack) but I'm guessing they have female threads to accept what is shown. I was think they might be good to make fullers and other tooling as long as the steel is hardenable. Would these be made from something like 4140 or other medium carbon steel? Anybody here ever use them for tooling other then drilling wells with them? Quote Link to comment Share on other sites More sharing options...
Frosty Posted May 8, 2023 Share Posted May 8, 2023 Those would be air track rock drill steels and in the general range of 4140-medium carbon. Good steel it's very stress resistant makes fine tools of all kinds not required to hold an edge. If you want a solid piece, clean the air hole shiny, warm it enough to drive the piece of your liking into the hole. When it comes to forging the interference fit makes forge welding the two into one piece pretty easy. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Gazz Posted May 8, 2023 Author Share Posted May 8, 2023 Great! Thanks for the response. That was my thought as well about filling the hole. Quote Link to comment Share on other sites More sharing options...
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