Re: How do you drill a hole in hardened steel?

Posted by Deutz Lover on May 29, 2018 at 17:12:58 from (174.218.139.29):

In Reply to: How do you drill a hole in hardened steel? posted by 550Doug on May 29, 2018 at 12:51:33:

I am not sure which piece of steel you want to drill the holes, the rake or the plow? One way to spot anneal is to find some carbon arc rods. The pointed tip will produce resistance heat at the metal-carbon junction. I don't remember how much voltage is required. The temperature needs to be at least 600-800 F. It should be a dull red in the dark. Let it cool slowly.

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