I bought a HF vib tumbler.
used ceramic chips, and a handfull of nails as a test.
Tumbled a while, " long enough to turn nails BLACK!. tossed them out.
Next, I tried fine metal flakes "for brass gun shells" on some old keys, fair result...not good.
Question, How do you get the metal to shine so well???
I need basic what media, how full to fill, and how long to let it run instructions.
I already know how to F@$K it up...did that twice.I need to know how to do it right.
Thank you.

Thanks Rob and Joe! how many parts can be tumbled at one time?
Can you fill the tumbler, or is it a less is better thing?