Hmm, they must be cheap. I doubt I'd break an endmill, with 30+ years experience, and I'll check the hardness when it finally gets here. If the old non fluted FP has collector value that's another matter though.
A replacement FP at one source said it cost $45 before shipping, That makes it worth doing many times over from my standpoint. There are 2 for sale in GB for starting no reserve price of $30, still well within "doable", as it would have to sell for about $15 from my point of view other than a collector standpoint.
My tester says the FP in my Mauser 1970's P-08 is 49-50 C in the area that would be dealt with. Carbide at low speeds will cut that, though the surface grinder doesn't care as much about hardness.
It's also possible that it's been replaced in 80 years with a relieved pin, I'll know soon.
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The fear of the Lord is the beginning of wisdom
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