Rock Tumbler Grit and Ceramic Tumbling Media 4 Pounds, Polish Up to 25 lbs. of Rocks, 4-Step Polish Refill Media Kit, Compatible with All Rock Tumblers, Essential Polishing Kit for Adults

★★★★★ 4.5 31 reviews

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Management number 220270677 Release Date 2026/05/03 List Price $11.39 Model Number 220270677
Category
  • KoolStone Rock Tumblers for Every Level: Choose from our versatile lineup: the C1 and C1 Pro (2.5 lb capacity; Pro features a brushless motor for quieter, more efficient operation), the C1 Pro Max (3 lb capacity with noise-reducing cover), and the C1 Pro Ultra (dual barrel, 7 lb capacity, brushless motor, and noise-reducing cover). Each tumbler is designed to deliver consistent, high-quality results for both beginners and experienced rock collectors.
  • All-in-One Tumbling Solution: This complete 4 lb grit kit includes everything needed for a full 4-step rock tumbling process. Each set contains 1 lb of Step 1 (60-grit coarse silicon carbide), 1 lb of Step 2 (150-grit medium silicon carbide), ½ lb of Step 3 (600-grit fine silicon carbide), ½ lb of Step 4 (1200-grit aluminum oxide polish), and 1 lb of ceramic tumbling media for optimal barrel balance and smooth tumbling action.
  • Professional-Grade Results for Every Level: Designed to deliver consistent, high-quality finishes from rough shaping to final polishing. Whether you’re a beginner or an experienced lapidarist, this kit ensures a flawless transition through each stage for glossy, professional-grade stones.
  • High Efficiency – Polish up to 25 lbs of Rocks: Each set provides enough grit and media to process up to 25 lbs of stones across multiple batches. Ideal for continuous projects or large-capacity tumblers, ensuring cost-effective and efficient tumbling sessions.
  • Recommended Usage – For optimal results, use about 2 tablespoons (≈25–30 g) of grit per 1 lb of stones in each stage. Add just enough water to cover the stones inside the barrel and tumble for 7–10 days per step, checking periodically and adding water if needed to maintain smooth rotation. Adjust tumbling time slightly depending on stone hardness and size.
  • Compatible with All Rock Tumblers: Suitable for both rotary and vibratory tumblers. Perfect for hobbyists, classrooms, and professional workshops alike—KoolStone grit kits are engineered to help you transform rough rocks into smooth, glass-like gems with ease and precision.
Set Name 4 Pound Rock Tumbler Grit Kit
Grit Type Medium
Brand Name KoolStone
Unit Count 1.0 Count
Grit Number 1200
Part Number DC20220422
Manufacturer KoolStone
Material Type 1 lb of Step 1 (60-grit coarse silicon carbide), 1 lb of Step 2 (150-grit medium silicon carbide), 1 lb of ceramic tumbling media, ½ lb of Step 3 (600-grit fine silicon carbide), ½ lb of Step 4 (1200-grit aluminum oxide polish)
Grit Material Type Ceramic, Plastic
Compatible Material Glass, Metal, Stone

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