---
product_id: 536604779
title: "Brushless Edition"
brand: "koolstone"
price: "1225 Lei"
currency: RON
in_stock: null
reviews_count: 9
category: "Kool Stone"
url: https://www.desertcart.ro/products/536604779-brushless-edition
store_origin: RO
region: Romania
---

# 75% quieter rubber barrel 2.5LB large capacity barrel Brushless motor - 20,000 hrs lifespan Brushless Edition

**Brand:** koolstone
**Price:** 1225 Lei
**Availability:** ❌ Out of Stock

## Summary

> ✨ Turn Rough Rocks into Polished Masterpieces — Quietly, Quickly, Perfectly ⚙️

## Quick Answers

- **What is this?** Brushless Edition by koolstone
- **How much does it cost?** 1225 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/536604779-brushless-edition)

## 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

- • **Maximized Productivity:** Large 2.5LB capacity lets you polish more stones per batch, accelerating your creative flow.
- • **Whisper-Quiet Operation:** Rubber barrel reduces noise by 75%, so your workspace stays calm and focused.
- • **Complete Pro Kit Included:** Everything you need from polishing grits to jewelry fastenings, backed by a 1-year warranty and 90-day risk-free trial.
- • **Unmatched Durability & Power:** Brushless motor delivers up to 3X longer life and lightning-fast tumbling precision.
- • **Precision Control at Your Fingertips:** 3-speed settings with a 9-day timer and memory function for perfectly tailored polishing every time.

## Overview

The KoolStone C1 Pro Brushless Rock Tumbler is the world’s first brushless tumbler featuring a powerful motor with a 20,000-hour lifespan, a large 2.5LB rubber barrel that operates 75% quieter than plastic alternatives, and advanced 3-speed controls with a 9-day timer and memory function. Designed for serious hobbyists and professionals, it comes as a complete kit with polishing grits, ceramic media, and jewelry fastenings, all supported by a 1-year warranty and 90-day money-back guarantee.

## Description

desertcart.com: C1 Pro Brushless Rock Tumbler Kit - Professional Large 2.5LB Capacity, Up to 3X More Durable, Ultra Long Working Life Rotary Polisher with Full Accessories & Memory Function, Ideal for Adults : Toys & Games

Review: Great Tumbler! But do some research about proper tumbling technique before using. - Edit 11/29/23. Still love this tumbler. Had a problem with it. Contacted customer service and they took care of it right away. Awesome company, and the best service! Makes a terrific gift for the holidays. We got one for our grandkids this year. Got this tumbler for Christmas. Favorite gift this year. I Love going out and Beaching and finding Afates, Jasper and Quartz treasures. This unit is great! It's quiet, works well and the company has responsive customer service. It comes with a beautiful color instruction manual. The manual isn't bad. But I've learned from groups that tumble on Facebook and forums that there are several things tumbler manufactures get wrong in the instructions. The biggest one is speed. This tumbler spins too fast in all speeds and will bruise stones easily if you run it in speed 3 or 2. So always run it on speed 1. The manual lists RPMs at the axle I timed the RPMs of the barrel and that is rotating at 70-90. It is still faster than recommended but if you fill the barrel as close to 3/4 as possible along with ceramic filler you can minimize bruising. I included picks from my 2nd Tumble and they turned out good with speed 1 and mostly full tumbler. After first cycle you will need to have filler for other 3 cycles. Ceramic works but if you don't have enough ceramic to fill close to 3/4 I found decorative glass beads at the dollar store that work great as filler. I also use 2 tbs of Borax between each cycle and run for 2 hrs will clean the grit from rocks and tumbler pretty well which is essential por good polish. After polish cycle I run for 2 hrs with 2 tbs Ivory soap flakes to help increase shine. Also be careful in cycle one with small stone as this tumbler turns very fast and small stones can dissappear if you run it for a full week. So I check after 4 days to see if I should pull them out and sub in glass beads as filler. Some stones make take more than a week in first cycle. Agates take awhile and you don't wants pits or irregularities to carry grit into polish cycle. So I try to get very smooth in first stage. Anyways this tumbler is alot of fun and I am looking to purchase other tumblers now. I am particularly interested in a vibratory tumbler, they are much faster and use less grit. Potentially you can have polished rocks in a week instead of a month.
Review: Great tumbler for rocks and coins and the best customer service - This is an excellent tumbler that does what it's supposed to do. It provides a simple introduction to rock tumbling for the young adult beginner yet will give you beautiful professional results if you use it the way the pros do. You might not get pro results following the instructions the first time. Remember, it's just an introduction providing an overview and demonstration of tumbling. If the kit ends up giving you nicely rounded but very dull unfinished stones like I experienced, you'll be disappointed of course and think the tumbler stinks. But make sure you watch a few pro tumbling YouTube videos after your first experience with this kit. Then you'll know what to do the next time. For example, I found Cycle #1 at Speed #3 just too fast. The stones got really beaten up, and the tumbling was pretty loud. It might need to tumble much slower. I also tumble coins I find ocean beach metal detecting. This tumbler is perfect for cleaning up those nasty coins that have been in salty sand/salt water for weeks and months. I've attached some before and after self-explanatory pics including rows of washed and dried coins, drums before and after each type of coin and the tumbling medium. I won't go over the contents of the whole kit. Other reviewers have listed everything. It may seem at first like a cheaply built toy tumbler when you first pull it out of the box having been very nicely packed, but this is not a junky toy. It is built to do the job. If you treat it right, it will last. When you open the box, don't take the tumbler out yet. Pull out the water resistant, very well written and thorough manual. Read it cover to cover. I could describe all the dos and don’ts here, but the manual does the job quite well. I've read the reviews. From the problem descriptions, you'll understand that some folks simply didn't read the manual through. But if you have any problems at all or don't quite understand what to do contact Customer Service. You'll get Anne or Daisy. Daisy is 24/7 amazing. She’ll talk you through any issue or problem you’re having. Customer Service is not an easy job. But she (and Anne) will not stop until you're happy. You've seen their great reviews. But they're understatements. Daisy.....10 stars!

## Features

- Exclusive Design: The World's First Brushless Rock Tumbler ( desertcart Exclusive ).
- KoolStone C1 Pro Series – Classic Design, Professional Performance. Building on the trusted legacy of the C1, the C1 Pro delivers enhanced power, durability, and precision for serious hobbyists. Its upgraded brushless motor, reinforced barrel system, and intelligent speed control ensure smoother, quieter, and faster polishing results. Designed for creators who seek both reliability and performance — the C1 Pro turns every rock into a masterpiece.
- THE WORLD'S FIRST BRUSHLESS ROCK TUMBLER -- With a robust brushless motor, this rock tumbler delivers lightning-fast and highly-effective tumbling action that leaves your gems and rocks polished to perfection. Proven to last up to 20,000 hours, with a 60% longer lifespan than regular motors.
- 2.5LB LARGE CAPACITY & 75% QUIETER -- An updated features is that C1 Pro Rock Tumbler has a large 2.5LB capacity. Which allows to tumbler more rocks each time. Another improvement is the quieter barrel. Rubber material which has 75% quieter than most plastic barrel.
- FASTER POLISHING TIME & BETTER POLISHING RESULTS -- 3-speed controls (providing more granular tumbling results), a 9-day timer (with automatic shutoff feature and memory function), all displayed on clear screen, letting you easily hone your settings for precise tumbling each time.
- EVERYTHING YOU NEED FOR TUMBLING IS HERE -- C1 Pro Rock Tumbler has everything you need to create polished gemstones. Rock tumbler, 2.5LB capacity rubber barrel, 1LB for 9 different types of rough gemstones, 2 belts and 4 polishing grits and ceramic contact media, sifter, jewelry fastenings, and illustrated tutorial guide. For longer use and better results, pair it with KoolStone’s 4LB Professional Polishing Grit (sold separately).
- Official KoolStone Warranty – 𝟏 𝐘𝐞𝐚𝐫 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 & 𝟗𝟎-𝐃𝐚𝐲 𝐑𝐢𝐬𝐤-𝐅𝐫𝐞𝐞 𝐓𝐫𝐢𝐚𝐥. Your purchase is protected by KoolStone’s official 𝟏-𝐲𝐞𝐚𝐫 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲 and a 𝟗𝟎-𝐝𝐚𝐲 𝐦𝐨𝐧𝐞𝐲-𝐛𝐚𝐜𝐤 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞. Shop with confidence — we’re here to support your tumbling journey.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3TYLTLS |
| Best Sellers Rank | #6,802 in Toys & Games ( See Top 100 in Toys & Games ) #2 in Kids' Rock Tumblers |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,608) |
| Item Weight | 6.27 pounds |
| Manufacturer | KoolStone |
| Manufacturer recommended age | 13 years and up |
| Product Dimensions | 1 x 1 x 1 inches |

## Images

![Brushless Edition - Image 1](https://m.media-amazon.com/images/I/716uVMBHzeL.jpg)
![Brushless Edition - Image 2](https://m.media-amazon.com/images/I/71S6nTaLOCL.jpg)
![Brushless Edition - Image 3](https://m.media-amazon.com/images/I/71h5TdbJwGL.jpg)
![Brushless Edition - Image 4](https://m.media-amazon.com/images/I/71shP3AfTQL.jpg)
![Brushless Edition - Image 5](https://m.media-amazon.com/images/I/71yqdeTMWsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Tumbler! But do some research about proper tumbling technique before using.
*by T***D on March 12, 2023*

Edit 11/29/23. Still love this tumbler. Had a problem with it. Contacted customer service and they took care of it right away. Awesome company, and the best service! Makes a terrific gift for the holidays. We got one for our grandkids this year. Got this tumbler for Christmas. Favorite gift this year. I Love going out and Beaching and finding Afates, Jasper and Quartz treasures. This unit is great! It's quiet, works well and the company has responsive customer service. It comes with a beautiful color instruction manual. The manual isn't bad. But I've learned from groups that tumble on Facebook and forums that there are several things tumbler manufactures get wrong in the instructions. The biggest one is speed. This tumbler spins too fast in all speeds and will bruise stones easily if you run it in speed 3 or 2. So always run it on speed 1. The manual lists RPMs at the axle I timed the RPMs of the barrel and that is rotating at 70-90. It is still faster than recommended but if you fill the barrel as close to 3/4 as possible along with ceramic filler you can minimize bruising. I included picks from my 2nd Tumble and they turned out good with speed 1 and mostly full tumbler. After first cycle you will need to have filler for other 3 cycles. Ceramic works but if you don't have enough ceramic to fill close to 3/4 I found decorative glass beads at the dollar store that work great as filler. I also use 2 tbs of Borax between each cycle and run for 2 hrs will clean the grit from rocks and tumbler pretty well which is essential por good polish. After polish cycle I run for 2 hrs with 2 tbs Ivory soap flakes to help increase shine. Also be careful in cycle one with small stone as this tumbler turns very fast and small stones can dissappear if you run it for a full week. So I check after 4 days to see if I should pull them out and sub in glass beads as filler. Some stones make take more than a week in first cycle. Agates take awhile and you don't wants pits or irregularities to carry grit into polish cycle. So I try to get very smooth in first stage. Anyways this tumbler is alot of fun and I am looking to purchase other tumblers now. I am particularly interested in a vibratory tumbler, they are much faster and use less grit. Potentially you can have polished rocks in a week instead of a month.

### ⭐⭐⭐⭐⭐ Great tumbler for rocks and coins and the best customer service
*by B***S on November 27, 2022*

This is an excellent tumbler that does what it's supposed to do. It provides a simple introduction to rock tumbling for the young adult beginner yet will give you beautiful professional results if you use it the way the pros do. You might not get pro results following the instructions the first time. Remember, it's just an introduction providing an overview and demonstration of tumbling. If the kit ends up giving you nicely rounded but very dull unfinished stones like I experienced, you'll be disappointed of course and think the tumbler stinks. But make sure you watch a few pro tumbling YouTube videos after your first experience with this kit. Then you'll know what to do the next time. For example, I found Cycle #1 at Speed #3 just too fast. The stones got really beaten up, and the tumbling was pretty loud. It might need to tumble much slower. I also tumble coins I find ocean beach metal detecting. This tumbler is perfect for cleaning up those nasty coins that have been in salty sand/salt water for weeks and months. I've attached some before and after self-explanatory pics including rows of washed and dried coins, drums before and after each type of coin and the tumbling medium. I won't go over the contents of the whole kit. Other reviewers have listed everything. It may seem at first like a cheaply built toy tumbler when you first pull it out of the box having been very nicely packed, but this is not a junky toy. It is built to do the job. If you treat it right, it will last. When you open the box, don't take the tumbler out yet. Pull out the water resistant, very well written and thorough manual. Read it cover to cover. I could describe all the dos and don’ts here, but the manual does the job quite well. I've read the reviews. From the problem descriptions, you'll understand that some folks simply didn't read the manual through. But if you have any problems at all or don't quite understand what to do contact Customer Service. You'll get Anne or Daisy. Daisy is 24/7 amazing. She’ll talk you through any issue or problem you’re having. Customer Service is not an easy job. But she (and Anne) will not stop until you're happy. You've seen their great reviews. But they're understatements. Daisy.....10 stars!

### ⭐⭐⭐⭐ Good product, other than drive bands, and attention to detail on customers address
*by C***. on October 19, 2025*

The item itself works well. The item came with three power drive bands for tumbler. Two bands broke before 2 of 5 steps of polishing finished. I contacted vendor for new bands as advertised by vendor. I provided my address in Missouri via Email. Received an email they would send replacement bands immediately (stated I should receive in 5 to 7 days. 8 days I received email asking if I had received the bands. No I have not. Next day I got the proof of delivery, delivered to a PO Box in Carbondale West Virginia. This state and city is 820 miles and 13 hour drive from my address. I boxed tumbler in box, attached my return label and dropped at my Post office. Amazon credited some of my payment back.

## Frequently Bought Together

- C1 Pro Brushless Rock Tumbler Kit - Professional Large 2.5LB Capacity, Up to 3X More Durable, Ultra Long Working Life Rotary Polisher with Full Accessories & Memory Function, Ideal for Adults Kids
- KoolStone Rock Tumbler Grit Kit [6 Pounds], Polish Up to [40 lbs.] of Rocks, 4 Steps Polish Refill Media Kit, 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 Romania*
*Store origin: RO*
*Last updated: 2026-01-28*