Ok, but begs the question, why do so many claim how well hacksaw blades work? Personally, have a small oven and just case harden any frizzens that need help, then draw back. I know the Kasnet and Cherry Red creates no more that .001” to .002” case hardening if their instructions are followed, so almost useless for frizzens in my opinion, unless frizzen steel is hardenable. Curious why so many claim low temp soldering to a frizzen of hacksaw blades are an answer?
If I were to use a hacksaw blade, I would use one of the ‘all hard molybdenum’ industrial ones that I have a drawer full of. Figure I would grind to shape and use a low temp high strength silver solder to attach. No post solder heat treat required. But I have to admit, I haven’t tried it, but it is on my low priority to do list. Believe they are wide and hard enough. At least they cut most any soft steel, including 4140 pre hardened (RC 30) without issue. Recently retired, so no current access to hardness tester to confirm actual hardness.
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