---
product_id: 412551126
title: "K1 Advanced"
brand: "komestone"
price: "€ 208.46"
currency: EUR
in_stock: true
category: "Kome Stone"
url: https://www.desertcart.com.cy/products/412551126-k1-advanced
store_origin: CY
region: Cyprus
---

# 9-day programmable digital timer 75% quieter rubber barrel 2.5 lb heavy-duty capacity K1 Advanced

**Brand:** komestone
**Price:** € 208.46
**Availability:** ✅ In Stock

## Summary

> 💎 Quiet power, smart control, endless sparkle.

## Quick Answers

- **What is this?** K1 Advanced by komestone
- **How much does it cost?** € 208.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/412551126-k1-advanced)

## 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 Tumbling:** Experience up to 75% noise reduction with a thick rubber barrel—perfect for home, workshop, or family spaces without disruption.
- • **Complete All-In-One Kit:** Includes everything from rough stones to polishing grits, ceramic media, jewelry findings, and tools—start your gem-polishing journey day one.
- • **Generous 2.5 lb Capacity:** Polish 2.5× more stones per batch than standard kits, accelerating your creative projects and maximizing efficiency.
- • **Built to Last & Supported:** Replaceable parts and US-based customer service ensure your KomeStone K1 stays a permanent, reliable part of your hobby arsenal.
- • **Set It & Forget It Smart Timer:** Customize your polishing stages with a 9-day digital timer and memory function—pause, resume, and never lose your settings.

## Overview

The KomeStone K1 Quiet Rock Tumbler Kit is a top-rated, professional-grade rotary polisher designed for adults, kids, and families. Featuring a 2.5 lb thick rubber barrel that reduces noise by 75%, a programmable 9-day digital timer with memory, and three speed settings, it delivers efficient, hassle-free polishing. The complete kit includes rough stones, multiple polishing grits, ceramic media, and jewelry findings, making it ready to use out of the box. Trusted by over 3 million hobbyists and backed by a 90-day money-back guarantee and 1-year warranty, the K1 combines durability, performance, and expert support for a premium lapidary experience.

## Description

Buy KomeStone K1 Rock Tumbler Kit - 2.5LB Quiet Polisher for Adults & Kids | Complete Rotary Gem Polishing Kit with Thick Rubber Barrel, 3 Speeds, 9-Day Timer, Pause & Memory, Ideal Gift for All Ages: Rock Tumblers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Designed for Adults, Beginners, and Families — from rough stones to polished gems, create jewelry, displays, and keepsakes that are uniquely yours with this quiet, reliable 2.5 lb tumbling system. The complete kit features simple controls, a step-by-step guide, and replaceable components with US-based support, making it easy to start your first batch and grow into an ongoing rock-polishing hobby. An ideal gift for birthdays, holidays, and any occasion that kids, teens, and adults can all enjoy.
- 75% Quieter Rubber Barrel with 2.5 lb Capacity — Process agates, jasper, quartz, gemstones, sea glass, and most popular tumbling stones. The 2.5 lb barrel gives you 2.5× the capacity of a standard 1 lb barrel, letting you polish more stones per batch. Its thick rubber construction cushions rock impact and reduces noise by up to 75% compared to plastic barrels — comparable to a running dishwasher — for a comfortable tumbling experience in living rooms, garages, workshops, and hobby spaces.
- Smart Controls with Pause, Resume and Settings Memory — Choose from 3 speed settings and program each polishing stage on the clear LCD screen with the adjustable 9-day digital timer. Pause the tumbler to check your stones, then resume without restarting your settings. Automatic shutoff stops the cycle when complete, while the memory function restores your settings after any power interruption — the perfect, hassle-free control system for beginners and hobbyists alike. Set your stage, walk away, and come back to perfectly tumbled stones.
- Complete Rock Tumbler Kit — Ready to Unbox and Start on Day One — Includes the K1 tumbler, a thick 2.5 lb rubber barrel, 1 lb of rough rocks in 9 varieties sourced from around the world, four bags of 60/120/150/1200 polishing grit, ceramic tumbling media, a mesh strainer, jewelry findings, 3 drive belts, and a full-color illustrated guide. No additional purchases needed — everything required to begin your first polishing batch is already in the box.
- Step-by-Step Guidance for Every Level — The included full-color guidebook covers everything from initial setup to finishing your first batch — with detailed polishing techniques, troubleshooting steps, and practical tips like adding soapy water during polishing stages. Our US-based support team is also available anytime for polishing questions or machine help. Together, the comprehensive guidance and dedicated support help adults, beginners, teens, and families make real progress — from rough stones to finished keepsakes. Makes a complete geology or STEM gift for rock enthusiasts of all ages.
- Replaceable Key Parts for Long-Term Ownership — Core components are designed to be individually replaceable, not discarded. The motor, control panel, drive belt, rubber barrel, and metal lid kit are each available as replacement parts directly from KomeStone, with no planned end to parts supply. The K1 isn't a one-season purchase — it's a permanent part of your hobby setup.
- 90-Day Money-Back Guarantee & 1 Year Warranty — Risk Free Purchase — Shop with complete confidence. This rock tumbler kit is backed by a 90-day satisfaction guarantee and a 1-year warranty. Miss desertcart's return window? Our US-based customer service team offers 24/7 hassle-free replacement or refund support — we've got you covered.
- About KomeStone — A Brand Dedicated to Rock Tumbling. From beginner kits to professional-grade systems, KomeStone's full lineup of quiet, reliable tumblers is designed for every stage of your rock-polishing journey. The K1 is built with replaceable motor components, a thick rubber barrel, and responsive US-based customer support — a favorite among adults, hobbyists, and families who value consistent polished results, batch after batch, for years of dependable use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09PYR2RRT |
| Age Range Description | 8 years and up |
| Best Sellers Rank | #14,433 in Toys & Games ( See Top 100 in Toys & Games ) #5 in Kids' Rock Tumblers |
| Brand Name | KomeStone |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,247) |
| Educational Objective | Teaching geology, creative design, patience |
| Included Components | 1 pound of rocks & 4 bages of polishing grits & ceramic pellets, 1 rock tumbler base & 1 rubber barrel, 2 PU belts & user instructions, jewelry fastenings & adaptor & screwdriver & mesh strainer |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions | 11.22 x 9.02 x 5.71 inches |
| Item Highlight | Complete Rotary Gem Polishing Kit with Thick Rubber Barrel, 3 Speeds, 9-Day Timer, Pause & Memory, Ideal Gift for All Ages |
| Manufacturer | KomeStone |
| Manufacturer Part Number | CA-KS0107RT17 |
| Manufacturer recommended age | 8 years and up |
| Material Type | Japanese carbon motor, Top quality of stainless steel, Tyre grade rubber, 𝐂𝐏𝐒𝐈𝐀 & 𝐂𝐏𝐂 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 |
| Model Number | K1 |
| Number of Packs | 1 |
| Number of Players | 1 |
| Operation Mode | Automatic |
| Set Name | KomeStone K1 Professional Large 2.5LB Capacity Edition |
| Size | Large |
| Subject Character | Turn Raw Rocks Into Smoothy Gesm. Create Jewelry, Displays, Keepsakes, And Collectioons That Make Every Finished Stone Uniquely Yours. |
| Theme | Lapidary Tool for DIY Jewelry & Crafts, Perfect gift choice for the families or friends, Rock Tumbler Kit for Polishing Stones, Rock Tumbler Starter Kit with Timer & Motor, Rock Tumbler with Grits and Accessories, Stone Polishing Machine for Kids & Adults |
| Unit Count | 1 Count |

## Images

![K1 Advanced - Image 1](https://m.media-amazon.com/images/I/91LC0jc4V5L.jpg)

## Available Options

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

## Questions & Answers

**Q: Replacement belts. How do I order?**
A: Hi, here is the link for the belts: 
https://www.amazon.com/dp/B09S67HKV5/

Or just search KomeStone rock tumbler belts at amazon.com, then you'll find the belts. 

You are also welcome to follow our brand store on amazon.com through this link: https://www.amazon.com/stores/RockTumblerKit/page/98CD222F-C7A7-4372-80AE-0F0370A463C5
you'll find all accessaries related to our rock tumbelrs. 
If you want to contact our customer service, just email us via: support@komestone.com, we'll get back to you very soon!

**Q: Will the starter kit include all 9 kinds of stones or are there just some random rocks?**
A: This rock tumbler kit includs 9 kinds of stones as advertised,  weights around 1lb.

**Q: Can I tumble rocks we find at the park or do they have to be these special rocks?**
A: You can tumble any rocks you’d like, I suggest you get a rock identification app, plus a hardness chart. The rocks you tumble need to be the same hardness or the softer rocks will disappear… this is a lot of fun and the outcome is beautiful

**Q: Can this tumbler be used to polish metal washers?**
A: Based on two factors, yes it can.
#1 The washer must be a metal that could be polished in a conventional method, such as a buffing machine.
#2 That you are using a powder made for polishing.
I will add that I do not recommend polishing metal items in a tumbler,

## Frequently Bought Together

- Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included
- 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

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-11-07*