This large rock tumbler grit refill pack is adequate to tumble and polish up to 12 pounds of rock. It contains the following grits for professional-quality four-stage rock tumbling:
- Coarse: silicon carbide 60/90 grit, 16 oz.
- Medium/Fine: silicon carbide 150/220 grit, 14 oz.
- Pre-polish: aluminum oxide 500+ grit, 12 oz.
- Polish: aluminum oxide super fine, 12 oz.
This is our most economical grit pack–adjust the quantity of grit for each stage to best meet your needs.
WARNING: This product can expose you to Respirable crystalline silica, which is known to the State of California to cause cancer.
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