Stop in for a cup of coffee

OK. I can follow that for heavy sheet or plate.
I'm not sure I follow how that woul apply to a quarter.
No idea how much of a quarter Chris is replacing. But here's a small patch I had to do a few years ago.
How could the bull clamps been placed to help with something like this?

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I use a 3/8” rod, arm length with a point on one end and a T on the other. Plant shoulder on T and place point where you want pressure. Tack Tack Tack. Sheet metal is easy to manipulate.