---
product_id: 382898143
title: "Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids"
brand: "brave finder"
price: "A$34"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/382898143-brave-finder-professional-rock-tumbler-kit-rock-polisher-tumbler-kit
store_origin: AU
region: Australia
---

# 9-Day Timer 4 Polishing Grits 3 Speed Settings Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids

**Brand:** brave finder
**Price:** A$34
**Availability:** ✅ In Stock

## Summary

> ✨ Unleash Your Inner Geologist! 🌍

## Quick Answers

- **What is this?** Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids by brave finder
- **How much does it cost?** A$34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/382898143-brave-finder-professional-rock-tumbler-kit-rock-polisher-tumbler-kit)

## Best For

- brave finder enthusiasts

## Why This Product

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

## Key Features

- • **Polish Like a Pro:** Transform rough stones into stunning gems with our professional-grade polishing kit.
- • **Quality Assurance:** We stand by our product with dedicated support for any quality issues you may encounter.
- • **User-Friendly Design:** Step-by-step instructions make it easy for both kids and adults to create beautiful polished stones.
- • **Eco-Friendly Materials:** Our reusable ceramic tumbling filler is a sustainable choice for eco-conscious creators.
- • **Versatile Compatibility:** Works seamlessly with any brand of tumbler or stone polisher, ensuring you can use what you have.

## Overview

The Brave Finder Professional Rock Tumbler Kit is a comprehensive polishing solution designed for both beginners and seasoned rock enthusiasts. Featuring a digital 9-day polishing timer, three adjustable speed settings, and four distinct polishing grits, this kit allows users to transform rough gemstones into polished treasures. With eco-friendly ceramic tumbling filler and compatibility with any tumbler brand, it's perfect for educational purposes and creative projects for ages 12 and up.

## Description

[Rock Tumbler Kit]: Rock Tumbler kit is an educational toy, that is suitable for kids and adults,very simple operation, and has a durable design that can help you easily polish and turn rough rocks into sparkle Gemstones, and crystals. Let's create your own gems now!

## Features

- [Widely Used] The rock tumbler refill grit kit comes with enough high-quality silicon carbide grit to make a nice polish of rocks, gems, glass, etc. And it compatible with any brand tumbler or stone polisher.
- [Updated Version Rock Tumbler Grit] The upgrade ceramic tumbling filler can be reused-no need to add new ceramic particles in every stage. Compared with poly plastic, ceramic filler can polish a more perfect stone.
- [Steps to Polish] Rinse off raw stones - put stones into tumbler barrel - add grit - fill water to top of rocks - add 2/3 ceramic filler - close tumbler - tumble recommended for few days - rinse an and go to next grit. Detailed and ratios please refer to the instruction.
- [4+1 One Kit] 4-Step polishing grit pack and ceramic filler for use in 15 lb.
- [Win-win] We're always here to help if any quality issues and about the rock tumbler grit kit..[Package Contents] 1 Pound, Step #1 Coarse Grit; 1 Pound, Step #2 Medium Grit; 0.5 Pounds, Step #3 Pre-Polish; 0.5 Pounds, Step #4 Final Polish. Includes 3.5 Pounds of Polishing Grit + Ceramic Tumbling Filler Media. Tips: The different weights and densities, will mean that jars will not have equal amounts of fullness.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 2.8 kg |
| Manufacturer recommended age | 12 months and up |
| Manufacturer reference | RTB-RT001 |
| Educational Objective(s) | Hand Eye Coordination |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| tech_spec_battery_description_toys | No batteries required |
| Material Type(s) | Aluminum |
| Color | Black |
| ASIN | B09FT22N51 |

## Images

![Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids - Image 1](https://m.media-amazon.com/images/I/719wMCuZB1L.jpg)
![Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids - Image 2](https://m.media-amazon.com/images/I/71ISlDoAkML.jpg)
![Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids - Image 3](https://m.media-amazon.com/images/I/71l64e4466L.jpg)
![Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids - Image 4](https://m.media-amazon.com/images/I/71GsbqDbz2L.jpg)
![Brave Finder Professional Rock Tumbler Kit - Rock Polisher Tumbler Kit with Digital 9-Day Polishing Timer & 3 Speed Settings,4 Polishing Grits, Rough Gemstones, Stem Science Kit for Adults Kids - Image 5](https://m.media-amazon.com/images/I/71gaSA6RkyL.jpg)

## Questions & Answers

**Q: What are the grit numbers for each of the 4 steps?**
A: Hello, I use my commercially purchased products. For example grit: 36 to debrutter, 220 400 and 600 to continue, 1000 to pre-polish, Cerium oxide or alumina to polish. 5 days for each phase. Good day.

**Q: Why doesn't this tell you what size grit each step is?**
A: I guess they assume. Large grit will be coarse, fine will be polish.

**Q: Can I use these with stainless steel shot instead of the plastic pellets?**
A: No. I wouldn't try that. The reason for the plastic pellets is to help cushion the rocks and keep them from breaking and chipping. I would think that metal, even though it's smooth shot, would be too hard on the rocks.

**Q: How many rocks can fit in it?**
A: Hello;  Obviously the number of rocks depends upon their size.  That being said, I routinely tumble anywhere from 3/4 cup to 1-1/2 cups of rocks.  In my experience , it will handle more smaller (large pea sized) rocks then bigger rocks.  I’ve not run into a problem with these quantities and I believe I could do even more but the entire process of tumbling/polishing will always take longer with bigger stones.  I do recommend using a ceramic filler when tumbling.  See under polishing rocks in tumbler. Hope this helps.  I’ve had this one for almost 3 years and never an issue; my Granddaughter enjoys watching the process.  BlueWaterSailor

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-09*