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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We want this item to be alive when you get it! Therefore, we need to
know when you'll be home to receive it (minimizing the package's
exposure to the elements). Please specify a delivery date, Wednesday
- Friday that's at least 7 days from today.
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Bottom line? We guarantee our products and service won't mess up your science study—no matter how messy it gets.
WARNING: This product can expose you to Respirable crystalline silica, which is known to the State of California to cause cancer.