I want to make a hole in the end of a linear spring that came from a tape measure. It is 1/2" x .005 and very hard. I tried annealing it, but it turned crumbly (as best that I can describe it). I suspect that because it's so thin that it cooled too quickly. Any way to do this or am I SOL?
Thanks, Bob
What a good variety of great ideas! This thread is going in the file. Thanks a bunch.
Bob
BTW - I used Jeff's tiny-flame-on-just-a-spot and it worked a treat.
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