---
product_id: 575279744
title: "C1 Pro Max Professional Rock Tumbler Kit - Large 3LB Capacity & Brushless Motor, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids"
brand: "koolstone"
price: "$478"
currency: NZD
in_stock: true
reviews_count: 8
category: "Kool Stone"
url: https://www.desertcart.nz/products/575279744-c1-pro-max-professional-rock-tumbler-kit-large-3lb-capacity
store_origin: NZ
region: New Zealand
---

# 6X quieter noise-reduction cover 9-day timer with auto shutoff & memory First-ever brushless motor tech C1 Pro Max Professional Rock Tumbler Kit - Large 3LB Capacity & Brushless Motor, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids

**Brand:** koolstone
**Price:** $478
**Availability:** ✅ In Stock

## Summary

> 💎 Polish Like a Pro, Quietly and Confidently!

## Quick Answers

- **What is this?** C1 Pro Max Professional Rock Tumbler Kit - Large 3LB Capacity & Brushless Motor, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids by koolstone
- **How much does it cost?** $478 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/575279744-c1-pro-max-professional-rock-tumbler-kit-large-3lb-capacity)

## Best For

- koolstone enthusiasts

## Why This Product

- Trusted koolstone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Tumbling:** Experience up to 6X less noise with our advanced soundproof cover and rubber barrel—perfect for home or office use.
- • **Revolutionary Brushless Motor:** Unmatched power and durability deliver lightning-fast polishing without the wear and tear of traditional motors.
- • **Complete Gemstone Polishing Kit:** Includes 3LB rubber barrel, 1LB assorted rough stones, polishing grits, ceramic media, and jewelry fastenings—start creating immediately.
- • **Peace of Mind Warranty & Support:** Enjoy a 1-year warranty with 24/7 claim hotline and expert technical support, ensuring your investment is protected.
- • **Precision Control at Your Fingertips:** Customize your polish with 3-speed settings and a 9-day programmable timer featuring auto shutoff and memory function.

## Overview

The KoolStone C1 Pro Max Ultimate Edition is the first and only rock tumbler featuring a cutting-edge brushless motor combined with a noise-reduction cover that makes it 6X quieter than competitors. Designed for serious hobbyists and professionals alike, it offers precise 3-speed controls, a 9-day timer with memory, and a comprehensive polishing kit including rough stones and accessories. Backed by a 1-year warranty and 24/7 support, this large-capacity tumbler delivers superior, hassle-free gemstone polishing in any environment.

## Description

desertcart.com: KoolStone C1 Pro Max Professional Rock Tumbler Kit - Large 3LB Capacity & Brushless Motor, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids : Toys & Games

Review: Great customer care update - I give this a 5 star mainly due to Daisy in customer support. When the tumbler arrived it would not work at all. I was going to return it, but i noticed the great customer service reviews. Not only did I get a rapid response , but was given concise instructions on what to do. I took a video, sent it to Daisy and the very next day was told that the problem was determined it to be a faulty adapter. She sent a new one, which arrived quickly. I plugged it in and it has been running for the past five days without a hitch. Thank you Daisy. Time will tell if I can polish rocks or not. After using the tumbler for about two weeks, polishing rocks that had already been worked using another tumbler, I am thoroughly happy. Considering the cost I feel it is a great little machine. I must admit that I purchased some 8000 grit, and found it did a better job than the 1200. The tumbler is quiet, (I have it in my den), runs without a hitch, and is easy to use. The combination of great customer support, and a machine that does all I want, I would recommend this, especially to the beginners and young geologists. The rocks look better than my mediocre photos.
Review: Great product and service! - Tumblr is working great and is pretty quiet (about the same as our clothes dryer). Customer Service is fantastic. We received the extra 1 pound bag of rocks after reaching out to the company based on the instructions posted. They were quick to respond and let us know as soon as they shipped out the rocks. We're really excited to see how oir first batch comes out, but I've already peaked on their progress and they're looking great!

## Features

- The FIRST and ONLY noise-reduction & brushless motor rock tumbler available on the market.
- 1 Year 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲- Special Bonus Just for You! The 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲 covers accessories replacement, techical support, 𝟐𝟒/𝟕 𝐜𝐥𝐚𝐢𝐦 𝐡𝐨𝐭𝐥𝐢𝐧𝐞 and so on. 𝐌𝐚𝐤𝐞 𝐲𝐨𝐮𝐫 𝐦𝐨𝐧𝐞𝐲 𝐰𝐨𝐫𝐭𝐡 𝐞𝐯𝐞𝐫𝐲 𝐩𝐞𝐧𝐧𝐲.
- CUTTING-EDGE BRUSHLESS MOTOR, UNMATCHED IN THE MARKET -- C1 Pro Max rock tumbler boasts an unbeatable brushless motor, providing lightning-fast and highly effective tumbling action that leaves your gems and rocks polished to perfection. We take pride in being the pioneers of the brushless motor rock tumbler, currently the first and only one available on the market.
- 6X QUIETER WITH NOISE-REDUCTION COVER, PERFECT FOR ANY ENVIRONMENT -- Experience the tranquility of tumbling with the noise-dampening cover that makes tumbling operations quieter than ever before. Ideal for enthusiasts who enjoy tumbling indoors or have limited space. Moreover, the rubber barrel reduces noise by 75% compared to other plastic barrels.
- EXPEDITED POLISHING AND SUPERIOR RESULTS -- With 3-speed controls allowing for more precise tumbling, a 9-day timer featuring automatic shutoff and memory function, all conveniently displayed on a clear screen, you can effortlessly hone your settings for impeccable polishing results every time.
- EVERYTHING YOU NEED FOR GEMSTONE POLISHING RIGHT AT YOUR FINGERTIPS -- The KoolStone Rock Tumbler includes a complete set of tools required for creating exquisite polished gemstones. Unbox and discover the rock tumbler itself, equipped with a 3LB capacity rubber barrel, 1LB of rough gemstones in 9 different varieties, 2 durable belts, 4 types of polishing grits, a sifter, mesh strainer and ceramic pellets,along with jewelry fastenings and an illustrated tutorial guide. Start tumbling right away!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CG31MLN9 |
| Age Range Description | Suitable for children aged 13 and above |
| Best Sellers Rank | #82,771 in Toys & Games ( See Top 100 in Toys & Games ) #27 in Kids' Rock Tumblers |
| Brand Name | KoolStone |
| Color | Brushless Edition: C1 Pro Max |
| Customer Reviews | 4.6 out of 5 stars 295 Reviews |
| Educational Objective | STEM |
| Included Components | 1-Year Warranty Card, Illustrated Learning Booklet, 1LB Assorted Rough Rocks, 2 Durable Belts, 3LB Capacity Rubber Barrel, Ceramic Tumbling Media, 4 Bags of Polishing Grits, Jewelry Fastenings, Soundproof Rock Tumbler Base with Brushless Motor |
| Item Weight | 3.88 Kilograms |
| Manufacturer | KoolStone |
| Manufacturer Minimum Age (MONTHS) | 156.0 |
| Material Type | 1.） Tyre grade rubber barrel and top-quality stainless steel. 2.) If you received the package and missing parts or damaged, no worries, please feel free to reach out at: support@ikoolstone.com to take the replacement. 3.) Any problems before purchasing, please reach out at: support@ikoolstone.com to get the answer. |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | Corded Electric |
| Size | Large |
| Supported Battery Types | No batteries required |
| Theme | Perfect gift for rock lovers, kids, and hobbyists to create stunning polished stones. |

## Images

![C1 Pro Max Professional Rock Tumbler Kit - Large 3LB Capacity & Brushless Motor, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids - Image 1](https://m.media-amazon.com/images/I/81co-hN8CYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great customer care update
*by A***S on November 30, 2025*

I give this a 5 star mainly due to Daisy in customer support. When the tumbler arrived it would not work at all. I was going to return it, but i noticed the great customer service reviews. Not only did I get a rapid response , but was given concise instructions on what to do. I took a video, sent it to Daisy and the very next day was told that the problem was determined it to be a faulty adapter. She sent a new one, which arrived quickly. I plugged it in and it has been running for the past five days without a hitch. Thank you Daisy. Time will tell if I can polish rocks or not. After using the tumbler for about two weeks, polishing rocks that had already been worked using another tumbler, I am thoroughly happy. Considering the cost I feel it is a great little machine. I must admit that I purchased some 8000 grit, and found it did a better job than the 1200. The tumbler is quiet, (I have it in my den), runs without a hitch, and is easy to use. The combination of great customer support, and a machine that does all I want, I would recommend this, especially to the beginners and young geologists. The rocks look better than my mediocre photos.

### ⭐⭐⭐⭐⭐ Great product and service!
*by K***Y on January 4, 2026*

Tumblr is working great and is pretty quiet (about the same as our clothes dryer). Customer Service is fantastic. We received the extra 1 pound bag of rocks after reaching out to the company based on the instructions posted. They were quick to respond and let us know as soon as they shipped out the rocks. We're really excited to see how oir first batch comes out, but I've already peaked on their progress and they're looking great!

### ⭐⭐⭐⭐⭐ Nice, small beginner unit
*by H***B on November 25, 2025*

Been using for about a month without issue. Much quieter than I expected, comparable to a dish washer. Easy to use and included guide helps you get started, customer service is good too. They offer additional rocks to tumble for free if you contact them via email and those came without issue too!

## Frequently Bought Together

- KoolStone C1 Pro Max Brushless Rock Tumbler Kit - Extra Large 3LB Capacity, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids
- KoolStone Large Rock Tumbler Grit Kit [10 Pounds], Polish Up to [50 lbs.] of Rocks, 4 Steps Polish Refill Media Kit with [Ceramic and Plastic Pellet Tumbling Media], Compatible with Any Tumbler
- 5 Packs of Rock Tumbler Replacement Belts, Only Compatible with KoolStone C1, C1 Pro & C3 Rock Tumbler, 78 * 4mm

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*