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  • Large Capacity 2.5LB Digital Rock Tumbler with Variable Speeds and Memory Timer, Complete Kit

Large Capacity 2.5LB Digital Rock Tumbler with Variable Speeds and Memory Timer, Complete Kit

$57.17 $68.6
I was so happy after buying one of these machines and using it for a month, that I bought another. Unfortunately, the second machine came with a bad AC adapter, but I contacted KomeStone’s customer service department, and Lily was able to help me out right away. I received the replacement adapter just a few days later, and the second machine has been running great ever since. The first attached image shows a batch of rocks that has been through the whole process, mostly including rocks that were included with the tumbler. The second photo shows a batch of rocks, which I found myself, that are at the end of the second of the four tumbling stages. I’m reserving them while I process some more stone through the first two stages. KomeStone and others recommend making sure that the tumbler is kept 1/2 to 2/3 full during each of the stages for best results. Since the stones get smaller with each stage, it’s likely that even if you started with the tumbler almost 2/3 full at the beginning of the first stage, by the time you get to the end of the second stage those same stones are unlikely to fill the tumbler the requisite 1/2 full (or 1/2 empty, if you see it that way). So you’ll always be running more stones at the earlier stages than at the later stages. You’re also likely to find that some of your stones have cracks in them after one of the stages that makes it a good idea to either rerun them through the first stage to really smooth out the larger features, or just enjoy them as they are, without further processing. Keep in mind that you will need to buy more grit to process additional loads, but it’s relatively inexpensive. You’ll need to buy more ceramic filler, too. After two months, the filler in my initial jar has shrunk to the size of grains of rice. I recommend pressing firmly all the way around the top of the barrel, once you’ve put the metal cap on, but before you screw it down, just to make sure that its seated as squarely as possible. That can help prevent unfortunate leaks. Also, if you’re sensitive to noise, you can save yourself a headache by buying a 5-gallon plastic bucket and inverting it over the top of the tumbler while it’s running. Just one bucket per tumbler meant a significant noise reduction, although I found that two is even better; so much so that I can keep the tumblers in the room with my computer and have a videoconference without any problem. And you can always use the buckets when you go out to collect more material for tumbling. One more thing. Tumbling is a process that requires patience. I run each stage at the maximum recommended length, where the four stages take a total of 31 days, and it’s even longer when you factor in the multiple early stage loads it will take to a properly filled final stage. If you don’t have that much patience, it won’t be terrible. I ran my first batch all the way through from stage one to stage four, even though the latter stages were less than 1/2 full. And the results still look pretty good. It’s not like I’m wanting to sell them or anything.
Rock Tumbler Kits

Rock Tumbler Kits

  • Large Capacity 2.5LB Digital Rock Tumbler with Variable Speeds and Memory Timer, Complete Kit
    $57.17 $68.6
  • Professional 3LB Capacity Rock Tumbler with Brushless Motor and Noise-Reduction Cover, Ultra Quiet Rotary Polisher Kit
    $34.13 $61.43
  • Ultra Quiet 7LB Dual Barrel Rock Tumbler Kit with Noise-Canceling Cover and Digital Controls
    $69.34 $103.31
  • Professional 4lb Rock Tumbler Kit with Brushless Motor, Adjustable Speed, Timer, and Full Accessories
    $56.39 $104.31
  • Ultra Quiet 3 Lbs Capacity Professional Rock Tumbler with Brushless Motor and Noise Reduction
    $36.59 $66.58
  • Starter Rock Tumbler Kit with Leak-Proof Barrel and 4-Stage Silicon Carbide Grit for Polishing Gemstones
    $40.17 $62.26
  • 22LB Extra-Large Rock Tumbler with Brushless Motor and Real-Time Display, Heavy-Duty Metal Base
    $53.55 $102.82
  • Complete Rock Tumbler Kit with Rough Gemstones and Polishing Grits for Kids and Beginners
    $61.37 $79.17
  • Hobby Rock Tumbler Kit with Noise-Reduced Barrel, Grit, and Raw Gemstones for Kids and Adults
    $44.85 $72.65
  • Durable Rock Tumbler Kit with Leak-Proof Barrel, Built-in Timer, and Polishing Grits for Kids
    $58.63 $84.42
  • Professional 2.5LB Capacity Rock Tumbler with Adjustable Timer, Speed Control, and Noise Reduction
    $38 $47.12
  • Double Drum 6LB Rock Tumbler Kit with Rough Gemstones, Polishing Grits, and Jewelry Settings
    $55.86 $109.49
  • Electric Double Drum Rock Tumbler with 6LB Capacity and Quiet Leak-Proof Barrels
    $76.33 $103.81
  • Ultra Quiet Rock Tumbler Kit with 3-Speed Motor, 9-Day Timer, and Noise Reduction Cover for Kids and Adults
    $53.15 $67.49
  • Professional Rock Tumbler Kit with 2 lb Leak-Proof Barrel, Rocks, Grit, and GemFoam Polish
    $39.94 $66.3
  • Heavy Duty 15 lb Capacity Metal Rock Tumbler with Hexagonal Barrel and Rubber Lining
    $69.67 $131.67

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