National Geographic Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit

Product Information

The motor spins a pin on the bottom, which turns a hard rubber barrel through friction, while the end of the barrel is held in place by a pin. This design differs from the Lorton 3A in how the motor is cooled and the structure of the base of the tumbler is sturdier.

At the same time, we noticed that the unit has the tendency to overheat. Therefore, it might be recommended to pause the machine every now and then. It goes without saying that this will make the polishing process last more than you’d want. Buying AdviceThe instructions also contain fun facts about each mineral and information about how the tumbling process works in relation to how the natural process of smoothing and rounding is carried out. Have you used this tumbler? Know of a better one for beginners? Share your story with us! Leave a comment below!

With all the excellently crafted professional features, you also get speed controls set to help you navigate through the best of gemstones. With the kit you get a shutoff timer to provide you with accurate results. You also get a pound of rough gemstones, four polishing grits and jewellery fastening. Alongside the instruction manual is simple to grasp too. On the other hand, the unit is a bit loud. While this isn’t necessarily an engineering fault, it can be an annoyance to some people. This also depends on the place where you plan on using the machine. If your insulation is decent, then you shouldn’t be too bothered by this. Some people choose 3 or 5 steps for their tumbling process, and some change the process depending on the stones. Because grit abrasive is usually only found in bulk, this small amount is a much appreciate sample. Plus, since you get nine types of different gemstones, you can really get to work the minute after you unbox the machine. So, if you’re eager to give it a run, this is great. It has a similar design to the Lortone 3A – that we have found to be the most efficient design on the market.The last important piece of any starter kit is the abrasives. This kit comes with a small amount of abrasive, enough to take the sample minerals through each step of the process. Rotary tumblers take much more money to produce better results. Vibratory ones don’t need any extra upkeep once you get it set up! Because they involve fewer collisions, vibratory tumblers will change the shape of your raw stones less than rotary tumblers. Rather, they smooth the stones out in the general shape that they started in.