GemWorld TUMBLING INSTRUCTIONS
The actual amount of grit and polish depends on what you are wanting to shape and polish size and amount Vibratory tumblers use less grit and polish than rotary type Normally rotary tumblers use an 8 1 to 10 1 ratio of rock to grit and 16 1 to 20 1 ratio of rock to polishing powder The idea is to use the least amount that would provide the