Thread: Hardening drill rod - how to avoid dimensional changes?
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Posted to rec.crafts.metalworking
Andy Dingley
 
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Default Hardening drill rod - how to avoid dimensional changes?
On Wed, 23 Nov 2005 15:11:36 -0800, "Kelly Jones"
wrote:

OK...I'll ask a dumb question...Isn't drill rod already pretty hard?

No, it's soft. That way you can machine it however it's needed, then
harden it afterwards.
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