Nah, we use MANLY welders! None of that sissy stuff for us.

Yes, those are typo's. Should be 0.030" and 0.025". I'm used to calling it "Aught-twenty-five" or "Aught-thirty" and I forget about the decimal point placement.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now