Hard rods April 11, 2013 10:44AM
Is there a way to tell if rods have been hardened by looking at them or do you have to have them tested or some other way to tell?

Re: Hard rods April 11, 2013 11:09AM
Not always 100% accurate but usually after they have been hardened they are a little lighter color. More of a light grey color.

Re: Hard rods April 11, 2013 01:06PM
Rockwell test.

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