Rock Polishing Tumbling Grit For 15 lb Tumblers In Jars by RTumbler Professional Grade Rock Polishing Grit at Education God. MPN: Grit Jar. Hurry! Limited time offer. Offer valid only while supplies last. 4 step grit set with instructions for use in a 15 pound tumbler, or 5 3lb tumbles. 1 pound 60/90 Coarse Silicon Carbide Grit. 1 pound 120/220 Medium Silicon Carbide. 8 ounces 500 Fine (pre polish) Silicon Carbide Grit. 8 ounces 1200 Aluminum Oxide Polish.
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