Brushless Editon

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.

Product works well. Arrived with extra belts, some stones, grit, and ceramic. Customer service A+. MOTOR died two weeks into tumbling; I contacted customer support and messaged with Daisy. She sent out a replacement motor which I received within a week. Also sent out a screw driver and extra screws, and emailed a link to a video to show how to take out the old motor and replace it. Replacement was easy. Machine is up and tumbling again! Barrel size is larger than my other tumbling barrels. Noise level isn't quiet, but it isn't outrageous either. It is compact, light weight, and for the money, it is an excellent product. The bonus is the customer service.

Very pleased with this tumbler, I am a beginner at tumbling and rock collecting for the most part, i love the easiness of set up and instructions, comes with multiple pendants/jewelry for making them. Also comes with 2 each pack of grits for each stage. May take about a month but I am so pleased with this item! The sound quality is very great as well, very quiet in my opinion, can’t hear it in the room against the garage either and it’s right against that wall! You really only hear it if you’re RIGHT out in the garage. For people who don’t mind a little noise it’s a great clicking noise I’m sure some people could even fall asleep to lol, it’s that quiet! The rubber really helps, the manual is super simple and has every single step especially for a beginner! I got the brushless edition because they are supposed to last longer and have better results I read online! Comes with extra belts, pendants, rock grits, 1lb of rocks (it was 15.4oz so just about a lb a little under but that is besides the point, they are very nice size as well. I love the size of the tumbler as well, it’s very cute. The durability seems great as well and it’s super simple, no mess ups! The speed adjusts as well, but follow the manual for best options on starting! It is very educational as well considering the manual is pretty dummy proof, perfect for beginners or even professionals! Functionality so far is great as well, will keep updated if anything changes. I read they have great customer service as well, so I’m very pleased!

I recently took up "rock hounding", and was excited to polish the rocks I've discovered, as well as the ones included in the kit. Compared to tumblers I've had in the past, this one is quite a bit quieter. The manual is pretty straightforward, and easy to do. I must say that after following the process to the letter, the end results were a bit disappointing. I am a fan of crystals and, minerals, and use them for many things. Compared to the rocks that I have purchased, the ones that I tumbled just don't have a high shine to them. I even soaked them in mineral oil for a few days, hoping they would achieve the luster that I was looking for. I will continue to use the tumbler, and hopefully I will get better results in the future. UPDATE: The seller reached out to me offering a refund, and gave me a tip on how to use Borax to get shiny stones. I declined the refund, and I ran the stones through the Borax as instructed. Still no shine at all, I am including a picture of my last batch. Update: the seller has reached out to me repeatedly to make sure that I am completely satisfied. I have rarely seen such dedication from a company towards it's customers, and I am highly impressed! They are currently working on a better polish, and have even offered to send me some to use on my dull batches, once it has been perfected. I have added another star due to absolutely outstanding customer support from this company.

Worked for a month then the motor gave up, I followed all the instructions on weight. The belts are also poor quality, went through 2 In just a month.

My 8yr old daughter wanted a rock tumbler for her birthday and I am very happy with this model. It works great, it’s easy to use, and it’s easy to clean. The only thing I would say is that you should read the instructions closely because I didn’t read them closely enough for the final stage. If I had, my rocks would have been more polished had I made sure to follow the steps. That being said, it was my own fault because the instructions were clear and easy to follow, I was just in a hurry😄. I’ll update in the next batch when I follow the instructions with more precision. Customer service is very helpful and you get free belts and another rock sample if you send in the code. The tumbler does make some noise, but that’s easily solved if you put it in your garage or a corn of your home away from everyone. My daughter loves how the rocks turned out and is very excited for the next round. As someone who always wanted a tumbler, I enjoy spending time with my daughter on this pursuit. I am very happy with the purchase and am looking forward to more rock adventures.

The tumbler works well, and their customer service is great. Daisy was really quick to respond and friendly. Thank you!

UPDATE - 4 STARS - I originally gave this a 1 star rating (see below). After leaving that review I contacted customer service for KoolStone directly (information on box). They were very prompt with their replies and immediately sent me out a new base and belts, the barrel was completely fine and did not need to be replaced. The replacement tumbler is running and so far seems to be working well. I have upgraded the review to 4 stars since they made it right, but I could not leave a full 5 star rating because the first one I received was faulty and did break. I will update this review further once the tumbler has run a few cycles. 1 STAR - The belts didn’t last more than a week each. The tumbler itself completely died after less than 3 weeks of total run time. I didn’t even get to run the full 4 steps before it completely died. I purchased just over 2 months ago and didn’t start using right away, so I am past the return window. Just an expensive piece of trash now. I have family members that tumble regularly, there are many other tumblers that are very similar that do not have issues with breaking belts, or failing motors.

Great product and even better customer service. Daisy has been really helpful and goes above and beyond for me. If you ever have an issue just contact the email and they will answer promptly and ship out a new part quickly if needed. Very impressed