Need new / quality backplate for 3 jaw D1-5

Upcoming work that I'd like to use the 3jaw for... Checked things again and I thought I could get it better than it is...

With my 12 inch test bar, I was getting 3 thou runout at the chuck and 5ish at the end of the bar.
I removed the chuck from the back plate, and measured... about 1 thou of runout. I took a tiny cleanup cut across the mating surface of the back plate and re-installed and tested.
half thou at the chuck... 1 thou at the end of the bar. Repeatable.
Super happy!
 
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