The refill kit includes enough media to tumble a full load of rock in a 3 pound rotary or at least twice as much rock in a vibratory tumbler. Use this same top quality grit and polish as professionals to obtain the best shapes and finishes for your treasured rocks.The standard tumbling process for rocks uses a four step process and these abrasive and polishing materials.
The following four items are included.
- One 3 oz. package coarse Silicon Carbide (60/90 grit) used in Step 1
- One 3 oz package medium Silicon Carbide (120/220 grit) used in Step 2
- One 2 oz package pre-polish Aluminum Oxide (500 grit) used in Step 3
- One 2 oz package polish Aluminum Oxide (Fine - micron sized) used in Step 4
The abrasive media is shipped in separate plastic re-closable bags. This product is made in the USA and is of the highest quality used in industry.