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Tim Ayers · 07-29-2010, 10:37 AM

I believe, the "Z" blocks were one of the military versions with high levels of nickel in the mix.

07-29-2010, 10:37 AM	#59
Tim Ayers Senior Member Join Date: May 2010 Location: NJ Posts: 6,181	Re: Boring a flathead I believe, the "Z" blocks were one of the military versions with high levels of nickel in the mix.