AtoRock Large 10lb Rock Tumbler Grit & Polish Refill Kit – 4-Step Polishing for Up to 70 lbs

Professional 4-Step Polishing for Consistent Shine

The AtoRock Large 10lb Rock Tumbler Grit and Polish Refill Kit is designed to guide rough stones, sea glass, and mineral pieces through a calm, hands-on polishing journey. Built around a strict 4-stage process—coarse grinding, medium grinding, pre-polishing, and final polishing—this kit helps you surface sharper details, richer color, and a smooth finish. While results vary by stone type and tumbler model, many users report a noticeable shine with consistent practice and proper timing.

What’s in the kit

• 2 lbs 60 grit coarse silicon carbide
• 2 lbs 150 grit medium silicon carbide
• 1.5 lbs 600 grit fine silicon carbide
• 1.5 lbs 1200 grit aluminum oxide
• 2 lbs ceramic media
• 1 lb plastic pellets
• 2 measuring spoons

Key benefits and practical use

• Large 10 lb kit content supports processing up to 70 lbs of rough material across multiple runs, reducing the need for frequent re-purchases.
• Dual media promote a smoother, finer finish: ceramic cushions the surface and lowers noise, while plastic pellets balance the load for steadier tumbling.
• Compatible with most rotary and vibratory tumblers, including National Geographic and Koolstone, offering flexible setup for different brands.
• Recommended dosing: 2 scoops per 1 lb of stones per stage; 4 scoops for 2 lbs, with 7–10 day stage timings as a starting point.

In practice, you’ll notice a progressive improvement in sheen as you advance through the stages. The kit aims to deliver a durable gloss that enhances color, texture, and overall visual appeal, without promising identical results on every stone. Use as a reliable companion for hobby projects, classroom activities, and display-worthy stones.

Real-world use cases

Polish river stones for display shelves, craft sea-glass accents for decorative projects, or create bright, smooth pebbles for planters and terrariums. The four-step approach is well-suited for beginners learning the rhythm of polishing and for experienced hobbyists refining their technique.

Care and storage tips

Store the kit in a cool, dry place. Rinse and dry materials between batches if needed, and replace grit gradually to maintain consistent results across batches.