11 lbs Rock Tumbler Grit – Coarse 60 Silicon Carbide Tumbling Media, Step 1 for Tumbling Stones, Works with Any Rock Tumbler or Stone Polisher, Polish Up to 60 LBS of Rocks

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Heavy-Duty Coarse Grinding for Rough Stones – Designed for the first stage of rock tumbling, this 60 grit silicon carbide quickly removes rough edges, pits, cracks, and surface imperfections to begin shaping raw stones for polishing.
Large 11 LB Value Refill – One jar can polish up to 60 pounds of rocks, making it ideal for long tumbling cycles, bulk batches, classrooms, hobbyists, and frequent tumbler users.
Fast Cutting Silicon Carbide Formula – Features aggressive coarse particles that efficiently smooth rough rocks while preparing stones for finer tumbling stages and improved final polish results.
Compatible with All Rock Tumblers – Works with rotary tumblers, rock polishers, and stone tumbling machines from popular brands including National Geographic, KoolStone, Lortone, and more.
Perfect for Tumbling Stones, Gems & Glass – Suitable for quartz, agate, jasper, river rocks, glass, and many other tumbling materials used in rock polishing projects and hobby collections.