can a brass tumbler be used as a rock polisher?
 

sorry, my seven year old wants a rock polisher, wondering if my brass tumbler will do same thing. thanks.

brass tumbler as a rock polisher!
 

My rock tumbler is now a brass tumbler. Take the barrel and put water in it to see if it is a water tight seal for several hours. If it is water-tight it should work fine.

I doubt the vibratory tumbler would work very well.

The true tumbler is the best of both worlds.

Best wishes, Bill