Thanks for advice!
I tried chamfering with angled tool, in fact the female threading tool runs better and contact with fingers is better!
I know a man who make artistic gilding for church objects and various simulacra, but I want to avoid unnecessary expenses if possibile. I did same material binding post in my horn speaker setup, maybe 3 years ago, brass polished connectors are like new. I thinked to put some transparent enamel, but I think outside can be polished easily with clothes and normal cleaner, for the inside is really useful a bronze rifle or pistol brush, last time I used 6,5x55 swedish type, it works perfectly
I will buy a couple of new wheels for my knurling tool, I found used at 0 cost, but wheels are not in good condition, I'm surprised how I managed to get a similar result! For the future I will buy a set straight, and a set diamond
I never thinked about differences between the two types! thanks!
A couple of picture, I have to polish them with sand paper and cloths, and think a good shape for body connectors