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1project2many · 09-13-2022, 01:49 PM

For years I've used a block of steel that's roughly 1" thick and 4" square. I've also used cast iron as a backer. That tool above would be nice to have.

09-13-2022, 01:49 PM	#4
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,158	Re: magnetic copper welding plug For years I've used a block of steel that's roughly 1" thick and 4" square. I've also used cast iron as a backer. That tool above would be nice to have.