---
product_id: 487338251
title: "K2 Elite & Brushless Motor"
brand: "komestone"
price: "R$1833"
currency: BRL
in_stock: null
reviews_count: 5
url: https://www.desertcart.com.br/products/487338251-k2-elite-and-brushless-motor
store_origin: BR
region: Brazil
---

# 9-day programmable timer with 3-speed control Brushless motor with 20,000+ hrs quiet runtime Military-grade thickened rubber barrel, 75% quieter K2 Elite & Brushless Motor

**Brand:** komestone
**Price:** R$1833
**Availability:** ❌ Out of Stock

## Summary

> 💎 Turn rough stones into museum-quality gems—because your collection deserves the best!

## Quick Answers

- **What is this?** K2 Elite & Brushless Motor by komestone
- **How much does it cost?** R$1833 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/487338251-k2-elite-and-brushless-motor)

## Best For

- komestone enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Power:** Brushless motor + soft rubber barrel means 75% less noise—work on your gems without the racket.
- • **Extra-Large Capacity:** 2.5 lb barrel lets you polish more stones simultaneously—maximize your creative output.
- • **Safe & Family Friendly:** Certified non-toxic materials and smooth design make it perfect for STEM learning and family fun.
- • **All-Inclusive Starter Kit:** Comes with rough rocks, polishing grits, ceramic media, and a full-color guide—everything you need to shine.
- • **Pro-Level Precision Control:** Smart LCD timer & 3-speed settings put you in the driver’s seat for flawless polishing.

## Overview

The K1 Pro Rock Tumbler features a cutting-edge brushless motor with over 20,000 hours of quiet operation, a 9-day programmable timer with 3-speed settings, and a durable, military-grade rubber barrel that reduces noise by 75%. Designed for professionals and hobbyists alike, it includes a complete polishing kit and is certified safe for family use, making it the ultimate tool for creating polished gemstones with pro-level precision.

## Description

K1 Pro Professional Cutting-Edge Brushless Motor Advanced Rock Tumbler Polisher Kit, Large 2.5Lb Barrel with 3-Speed & 9-Day Timer, Includes All Accessories, Ideal Gift for Adults & Collectors

## Features

- 𝟗𝟎-𝐃𝐚𝐲 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 𝐆𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞 & 𝟏-𝐘𝐞𝐚𝐫 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲: Enjoy peace of mind with our extended 90-day refund guarantee and 1-year warranty. If you miss desertcart's 30-day return window, simply contact our 𝐔𝐒-𝐛𝐚𝐬𝐞𝐝 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 team for 𝐡𝐚𝐬𝐬𝐥𝐞-𝐟𝐫𝐞𝐞 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐨𝐫 𝐫𝐞𝐟𝐮𝐧𝐝 𝐚𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞. We offer 𝟐𝟒/𝟕 𝐜𝐥𝐚𝐢𝐦 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 to ensure your complete satisfaction.
- SAFE FOR KIDS – CERTIFIED NON-TOXIC AND FAMILY FRIENDLY: KomeStone rock tumblers enjoys the CPC certification (Children's Product Certificate) issued by the federal government, and made from non-toxic, child-safe materials, ensuring a fun and educational STEM learning experience parents can trust. Smooth edges, secure closures, and low-noise operation make it a safe and engaging rock tumbler gift for curious young explorers.
- DIVE INTO THE FUN ROCK TUMBLING: KomeStone rock tumbler is for turning rough raw rocks into smooth gemstones. You’ll be excited to see the rocks change with each cycle—a great lesson in patience for kids or inspiration for jewelry-making moms.
- 2025 K1 PRO UPGRADE: Professional Tumbling Innovation Features a smart LCD with 9-day programmable timer, 3 speeds, and pause function. Its brushless motor ensures 20,000+ hours of quiet operation, while the military-grade thickened rubber barrel guarantees durability. Create museum-quality gemstones with pro-level control.
- 2.5 LB EXTRA LARGE CAPACITY & QUIETER: We use the 100% soft rubber barrels which can absorb the impact of the tumbling rocks and it’s 75% quieter than that of other plastic drums, which likes the sound of a working dishwasher. With 2.5lbs extra large barrel, that means you can polish more rocks at once than 1 lb drum.
- COMES WITH EVERYTHING YOU NEED: Including the tumbler machine, the barrel, 1lb rough rocks, extra belts, 4 polishing grits and ceramic filler media (As a gift in package) and other accessories, etc. Especially the full-color Instruction book, detailed and clear to follow, even a starter knows how to use it independently.
- SCIENCE-BACKED POLISHING FOR PRO-LEVEL RESULTS: Achieve museum-quality shine with our 4-stage grit system (60/120/150/1200) and precision ceramic media. The leak-proof stainless steel lid ensures mess-free tumbling, while our exclusive guide unlocks pro techniques.
- About KomeStone: KomeStone rock tumblers are the first with brushless motor technology and now lead U.S. sales by a wide margin. We are more than a manufacturer — we’re your partner, offering reliable products and lifetime support you can count on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Theme | Geology |
| Item Dimensions | 11.22 x 9.02 x 5.17 inches |
| Item Weight | 2.5 Pounds |
| Size Name | 11.3 x 9.17 x 5.87 inches |

## Images

![K2 Elite & Brushless Motor - Image 1](https://m.media-amazon.com/images/I/81WpuUctItL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rock Tumbler: A Gem of a Machine (Mostly)
*by K***O on July 16, 2025*

Alright, rock enthusiasts and aspiring geologists, gather 'round! I recently acquired the KomeStone K1 Pro Professional Cutting-Edge Rock Tumbler, hoping to transform my collection of backyard pebbles into sparkling treasures worthy of a museum (or at least, my mantelpiece).This machine is, indeed, cutting-edge... or at least, it cuts through the rough edges of rocks with impressive dedication. It's like a tiny, geological spa for your stones, giving them the smooth, polished glow they've always dreamed of. My rocks are now so shiny, I'm pretty sure they're starting to develop egos.The "professional" part? Well, it certainly sounds important, and it feels pretty robust. It hums along, doing its thing, turning mundane rocks into mini works of art. I've spent an embarrassing amount of time just watching it spin, mesmerized by the slow, steady transformation. It's surprisingly therapeutic, almost like a lava lamp, but with more potential for bling.My only minor quibble is that I now have an overwhelming urge to collect all the rocks. Every walk is an archaeological dig, every pebble a potential masterpiece. My pockets are perpetually full, and my family is starting to eye me suspiciously when I bring home yet another bag of "future gems." This tumbler is so effective, it's turning me into a rock hoarder.So, if you're looking to polish your pebbles (and perhaps your patience), the KomeStone K1 Pro is a solid investment. Just be warned: you might develop a serious case of "rock fever." It's a gem of a machine, and I'm totally rocking my new hobby!

### ⭐⭐⭐⭐⭐ There is a learning curve!!
*by S***D on June 23, 2025*

I jumped into tumbling with no idea what I was doing, and I made a lot of mistakes, initially. The first of them being buying a tumbler from Temu. The Komestone tumblers are a huge upgrade from that! The barrels are very sturdy and well designed. I have had no issues with leaking, and they are very quiet (aside from the rocks tumbling around, obviously). I like having a timer to set for each stage, as it saves me the hassle of having to make notes or hopefully just remember. I didn't honestly follow the instructions in the booklet. Instead, Michigan Rocks on YouTube has really good instruction videos, and they're very helpful. This hobby requires a lot of patience, and that's probably the most important lesson I've learned. And while this brand's tumblers offer multiple speed settings, I've never used anything other than 1st speed. Many more experienced tumblers recommend a speed of around 40-45 rpms, as a more gentle tumble helps prevent damage to the stones. The 1st speed on these is faster than that... and yet, I still get results I'm happy with. These are good machines. I own two of the single barrels, and one double barrel, and I love them. I have found their customer service to be quite responsive, as well. There is so much to learn in this hobby, but it is so rewarding! It's important to keep an open mind, do your research, and ultimately to just have fun and enjoy the process! Would I recommend these machines? Absolutely!

### ⭐⭐⭐⭐⭐ Rock Tumbling Reimagined – A Surprisingly Rewarding Hobby with a Great Machine
*by B***B on June 26, 2025*

I used to have a rock tumbler years ago and always enjoyed polishing up stones I found. Lately, I’d been thinking about getting back into it, and after reading the reviews for the K1 Pro Professional Cutting-Edge Brushless Motor Advanced Rock Tumbler Polisher Kit, I decided to give this one a try.I’m so glad I did! After just one tumbling cycle, I already had enough polished stones to start a small collection—and to use in craft projects, home decor, and even a few handmade gifts. The possibilities are endless, which makes the whole experience even more fun and rewarding.I’ve completed three cycles so far, and it’s fascinating to see how much the rocks transform. I usually start with stones of different shapes and sizes, and once I see how they turn out, I decide what to do with each one. If nothing specific comes to mind, I display them in a pretty crystal bowl—they’re beautiful all on their own.Compared to the tumbler I had years ago, this model is quieter, easier to use, and impressively well made. The brushless motor is strong, and the kit includes everything you need to get started.I have no complaints—it’s a solid, high-quality machine that makes an old hobby feel new again. I highly recommend it!

## Frequently Bought Together

- KomeStone K1 Pro Professional Cutting-Edge Brushless Motor Advanced Rock Tumbler Polisher Kit, Extra Large 2.5Lb Barrel with 3-Speed Motor 9-Day Timer, 6 Belts, Rough Gemstones, 4 Polishing Grits etc.
- Rock Tumbler Polishing Grits and Ceramic Tumbling Media Kit | Essential for Polishing, 4 Steps Rock Tumbling Refill Media, Polish up to 25 lbs of Rocks, Work with Any Rock Tumblers, for More Tumbles
- Rock Tumbler Belt 5-Pack for KomeStone K1, K1 Pro, K3 – Includes 2 Upgraded PU Belts + 3 Rubber Belts – Durable Replacement Kit, Not for K2 or K4

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*