I am using colorFabb's copper, brass & bronze fill to produce the best polish for a jewelry piece. Wanted your advice on which tumbler would work best. Thanks..!
http://www.amazon.com/gp/product/B000RB16W8
http://www.harborfreight.com/dual-drum-rotary-rock-tumbler-67632.html
http://www.harborfreight.com/18-lb-vibratory-bowl-with-liquid-drain-hose-96923.html