![]() Plunge it vertically in and out of the cooling media to reduce the likelihood of warping or creating a stress riser at any sharp points on the piece. For the Air harding A-1, just use a blast of cold air from a compressor with a blow gun attached. Some were made of good steel, properly hardened and tempered, some were made of crap steel, where the tempering made no difference in the quality, some were made of good steel but improperly tempered.īest bet would be if you have a lathe, or access to one, is to make it out of O-1, A-1 or W-1 (Oil, air or water hardening in that order) drill rod, heat it to around 1,450° F to 1,500° F, hold it there for about 2 minutes (its small, so it doesn't need a long heat soak time) then plunge it vertically into the appropriate cooling media. ![]() ![]() The Raven firing pins are an iffy thing when it comes to quality.
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