Do you like rock collecting? If yes, do you have any rocks that might need some polishing for them to look nice and pretty in your collection box? You always adore science and experiment but you have no ideas about where to get the right tools to help you accomplish your dream? Then you might need a rock tumbler for helping you create your own masterpiece. But what are the best options you can find? Here are the top 10 best rock tumbler kits you should take a look at.

See Also: Best Kitchen Work Tables

List of the Best Rock Tumbler Kits in 2021

10. Hobby Rock Tumbler for Kids by NATIONAL GEOGRAPHIC

This kit of rock tumbler will include 0.5 LB of gemstones ready to be polished. There are a few steps you need to get the job done. It is easy and convenient to use since the kit gives all the instructions and tools. The machine is high-quality and user-friendly anyone would have no problem using it.

You can set the timer for the shutoff of the machine; then it will automatically off by itself. It comes with a steel lid and also produces less noise. The package also includes jewelry fastenings; you can design and wear your own creations. The kit also gives you a 2 years warranty.


  • It is easy to use and is the best rock tumbler for kids
  • Rubber barrel much quieter than plastic equivalents
  • Good value for money
READ ALSO:  Top 10 Best Car Seat Travel Bags in 2021 Reviews


  • Not as good at polishing as other tumblers
  • Can only hold 1Ib of rocks

09. Starter Rock Tumbler Kits by NATIONAL GEOGRAPHIC

This kit is recommended for starters. It also includes everything you need to process smoothly and beautifully. It gives you 0.5 pounds of rock, 4 stages of grit, a guide book, and a strainer. It is manufactured with a powerful machine that polishes your stone perfectly and also attached to the leak-proof barrel.

The package also comes with jewelry fastenings which allow you to show it off on your body. It is fun for users of all ages including small kids. This will surely help them find their talents. You will also get 2 years of warranty upon purchase. It’s a great STEM science kit for mineralogy and geology enthusiasts.

08. Professional Rock Tumbler Kits by NATIONAL GEOGRAPHIC

For this kit, it is recommended for someone who has some skills and knowledge about tumbling and would like to expand their skills. This set includes 1 LB of rough gemstones ready for tumbling. The steps are easy and well portray through their guidebook. The machine is reliable and long-lasting.

The process is leak-proof and noise-reduced. There are also jewelry fastenings and four kinds of grits. It has also an automatic shutoff button that gives you an easy process. It is guaranteed for 2 years.

07. Single Barrel Rock Polishing Tumbler and Geology Kit by Tru-Square Metal Products

This kit provides multiple tools and gadgets you will need when you tumble rocks. There is a grit pack, 4 lbs. of rock, and a tumbler machine. It is suitable for both experts and beginners. It can be used everywhere even at laboratories, industries, or schools.

The machine is attached with a barrel and a liner that prevents leaking. The machine itself is strong and powerful this will get your job done in no time. Also, they included a jewelry making kit for you.

06. Best Rock Tumblers for Beginners  by Discover with Dr. Cool

This one is a powerful machine that will last for a long time. There are easy steps you need to do to achieve a perfect polish gemstone. The kit has 0.5 pounds of rough stones which include 9 different kinds of stones. It also gives you a colorful guide book, jewelry fastening, and 4-grade grits.

There is also a timer button; you do not keep an eye on it. The guide book is included with an activity booklet that has 10 puzzles and games. There is also a 2 years warranty. The lid is made of steel, so there will be hardly any noise or fallout.


  • Great for beginners or kids, bundles of information, games, and puzzles
  •  Saving energy by its programmable timer
READ ALSO:  Top 10 Best Girls Bathrobes in 2021 Reviews


  • The belt that spins the tumbler not particularly durable

05. Rotary Rock Tumbler by Chicago Electric Power Tools

With this machine, you can polish all kinds of things including metals, stones, glass, or rocks. The machine is produced with a rubber barrel that reduces noise, and it helps produce a smoother working process.

The motor is strong and durable which you use for long times. The whole machine is made of metal that why you get no problem polishing all kinds of material. There will hardly be any fallout since the metal lid is secured with a rubber liner.

04. 20 LB Rock Tumbler by MJR Tumblers

With this particular brand, you will need to know some important steps before using the actual product. There are 4 kinds of grit that you will need to use in different stages of tumbling. They consist of silicon and aluminum grit.

These will surely give you a fine and smooth finish to your gemstones. Their barrel is also made of rubber for a quiet performance in processing the stone. The kit also includes 20 LB of plastic tumbling beads.

This MJR Tumbler has included two 10 pound capacity barrels and a grit kit for polishing 20 pounds of stones. With a heavy-duty 16 gauge welded steel frame, make the powder-coated to be scratch and corrosion-resistant.

03. Rock Tumbler Deluxe Kit by WireJewelry

This tumbler has a very powerful motor that allows you to operate 24/7. There are 4 grits, rough Madagascar stone (12 different kinds). This time, you get a 2 years warranty and a lifetime belt replacement warranty. It is made with a rubber barrel for leak-proof and noise reduction.

They also give you a polish kit with plastic filler pellets. The stone they give in the kit is weighted for around 1.5 pounds of unique selection. The machine is easy to set up and follow along. But, it is more suitable for professional users.

02. Rock Tumbler Kit Great Science & STEM Gift for Kids  by Dan&Darci

The kit has 4 grits, a rock storage bag, a spare motor belt, and a mesh strainer. You will also get 0.5 lbs of a gemstone, a low noise barrel, and a learning guide book.

The machine is constructed with an LED screen to tell you the time and power of the motor. There is also a timer button. The strong motor is made for speedy and handy jobs.

They installed an advanced feature that gives you control over the speed of the tumbling whether you want it fast or slow. It is also a great gift for children who love science.

01. Rock Tumbler Rock Grit Polish Kit by Tumble-Bee

If you want a bigger quantity of work done in one go, then this is perfect for you. The tumbler is capable of tumbling and polishing 4 lbs. of rock per time. Glass, stone, or metalwork perfectly fine with the motor. There is a switcher that tells you whether your tumbler is turning off or on.

READ ALSO:  Top 10 Best Baby Activity Jumpers – Buyer’s Guide

They also attached the motor with an AC fan-cooled motor that can protect your machine from over-heating. The product is easy to use you need to read some instructions before proceeding to the tumbling.

Buying Guides

Above are the 10 best rock tumbler kits in So, after you have seen the list above now it is time for you to look at some tips before buying the product. Their features, capacity, and productions included are what you should know before buying the product.


There are small and big machines for you to choose from. If you are new to the item, you should consider choosing a beginner kit. But if you are an expert in this field, then you can choose a more professional one.

The strength of the machines is also important when you need to find the best tumbler. Some motors can work 24/7 without resting since they are attached to a cooling fan.

While the other ones only work for several hours a day because they need some rest to prevent over-heating. There are also the ones with more grits or functions that allow you to not only polish stone but also metal and glass.

The advanced option is also important. There are an automatic timer shutoff and a switcher for on and off. If you want a more modern one, then an LED light dedicator should be an option for you.


Some tumblers can hold a larger quantity than others. Well, you might want the one with a bigger space, but if you only need it for your only activity or hobby then you can choose a smaller unit. Some units operate with less noise than others.

So, if you want a quiet and smooth-running machine, then you might need the machine with a rubber barrel and several liners. The metal lid is also a good choice since you will not need to worry about leaking. There is also a better strainer that helps you collect the stones more easily.

Tools Included:

If you want to create your own collection, then finding the kit with a jewelry kit ideal. There are ones with rock collecting bag or storage bag. You can also find the ones with some colorful games and puzzles that will make you invest in rock collecting even more.

An easy and thoughtful guide book or manual is also a great tool you need to start your tumbling journey. With additional items included in the kit, that helps make your rock polishing work more easily in a more time-saving way as well.