Measuring the diameter of shallow holes

I tried just trusting my dials, and was able to turn 5 out in about 30 minutes, fit was much better too.

My main issue it turns out, was stubbornness. I was using as small HSS boring bar. Too small for my quick change holder to repeat accurately. I made a boring bar holder to bring it up so that it repeats. I'll post some pics of the parts I am making later, pretty pleased with how they turned out.

I'm still glad I asked the question, I at least, have learned a lot here ;)

I'm happy that worked out for you.
 
Can you turn a plug gauge that is the correct diameter. Kind of like your own go/no go gauge
 
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