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Tool steels fall into three basis AISI groups as far as the hardening/quenching criteria are concerned. IMO, by the time you determine that, and take a DHP reading on the surface to determine the proper hardness, then anneal, spray or TIG, machine, reharden, etc- the $36 replacement wedge or 12.5 degree wear plate pinned into the lug seems a real bargain.
Just curious- have you dis-assembled your Parker to examine the mating wear surface on the bolt?
Welding tool steels, etc.
Threaded Mode