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We promise not to notice Zee
What bands??
Also get those bands when threading the rod and not taking the diameter down not quite enough....
Your surface finishes look good. I have purchased machined parts from vendors that don't look as good as those. I think you're beating yourself up on the bands - if they will polish out that easily then no harm no fould - although I do understand your frustration from how it was caused. A good haul of machined parts though. Definite thumbs up.