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Old 01-12-2018, 06:00 PM   #2
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Join Date: Oct 2013
Location: Simi Valley
Age: 38
Posts: 641
Re: Drilling Harded Spring Carbon Steel Shafts - Heat Treatment?

This is not the preferred method but I used it to drill a shaft I shortened for a smaller hole gun.

I put the ended of the shaft over a propane burner, one you would use to deep fry a turkey in the driveway, until it was red hot.

I then quenched it. Drilled the hole with a cobalt bit (make sure you center punch first so it doesn't walk off the shaft) and installed the flopper. Completely redneck but it worked.

I have since fired that shaft into many of rocks and yet to see a bend but this is on a 60ish CM gun.
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