Professional Rock Tumbler Kit, 4LB Extra-Large Barrel with Cutting-Edge Brushless Motor, Adjustable Speed & Timer, Durable Metal Base for Adults & Rock Collectors – Includes Full Accessories

• Professional-Grade Polishing for Advanced Users: Take your tumbling results to the next level with this metal rock tumbler, built for hobbyists and collectors who demand more. Engineered for precision, durability, and control, it delivers results far beyond entry-level models.
• Powerful Brushless Motor – No Maintenance, No Compromise: The high-efficiency brushless motor delivers strong, stable power and a longer lifespan. It runs with less heat and no dust, unlike traditional brushed motors that can overheat and wear out over time. No carbon brushes, no mess, and no drop in performance.
• 4lb Rubber Barrel – Heavy-Duty Capacity, Whisper Quiet: Upgrade your output with the 4-pound capacity rubber barrel that handles larger batches while reducing noise by 60% compared to plastic drums. Designed for indoor use and multi-day runs without disruption.
• Smart Controls – 3 Speeds + 9-Day Timer: Dial in your perfect polish with four speed settings and a programmable 9-day timer featuring auto shut-off and memory recall. Ideal for users who want tighter control over grit stages and cycle timing.
• Complete Kit – Built for Serious Tumbling: Includes everything you need to get started or upgrade: 4lb barrel, 1lb premium rough gemstones, 4 polishing grits, 2 spare belts, screwdriver, jewelry findings, mesh strainer, and a full-color instruction manual. Ready for pro-level polishing out of the box.
• AtoRock Official Warranty – – & – – . Missing parts, operation issues, or polishing advice—we’re always here for you. We strive to be the most reliable after-sales supporter in the rock tumbler industry. We don’t just sell rock tumblers—we’re your trusted long-term partner.

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1 Extra Large 4 LBS Barrel 2 Built for Pros 3 Easy Opening & Leakproof

AtoRock – Your Trusted Rock Tumbler Partner

At AtoRock, we believe every stone carries a story. That’s why we build our machines with professional-grade metal frames, brushless motors, and large-capacity barrels—to ensure strength, stability, and flawless results every time.

We’re more than a product, we’re your creative partner. From hobbyists polishing their first gem to collectors crafting timeless jewelry, AtoRock is here to support your journey.

✔ 1-Year Warr.anty & 90-Day Mon.ey-Back Support

✔ 24/7 Support

✔ Dedicated to the rock tumbling community worldwide

Maintenance Reminder

Apply lubricant to both roller ends weekly to extend your tumbler’s life.

If any parts are missing or you encounter any issues, please reach out to us. We’re committed to your satisfaction and will make sure your rock tumbler works perfectly.