Well the 4125 is in there part number right!
Even with one of those cheap digital calipers you can by in a hardware store or Harbor fright you can pick up on .005”.
If you do not have one of these to check the pistons out, then you should have had them in your toolbox anyway!
The real good thing about pistons made this way is that you take the out to a final finish of ,005” and Then a .005” over ring set will likely be a drop in with gapping work being needed.
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I do stuff for reasons.
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