Amazon.com.au:Customer reviews: NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rough Gemstones, 4 Polishing Grits, Jewellery Fastenings, Great STEM Science Kit for Geology Enthusiasts

Top positive review

What a Gem!

Reviewed in Australia on 30 August 2020

I bought the tumbler for my 7 year old but have had more fun than him. Running it near constant for a month has been no issue at all with the exception of the noise. The noise comes from the rocks tumbling, not the machine. I highly recommend building a box for it and filling lining the inside with foam to heap deaden the noise, then put it in a garage. That's what I did and I only hear it when I go in there. You get used to the noise but it is noticeably quiet when it gets switched off after a month. The safety features such as cut off it fingers are caught in the rollers are great, not that it is any concern as it is only the weight of the rocks. I highly recommend it but be prepared to find your own rocks and grit after.

Top critical review

All critical reviews›

John sukan

Not satisfied as it trips out.

Reviewed in Australia on 23 August 2021

It's tripping into fault mode and I cannot find a return address to get my refund. I am looking for a friend to assist me as return system is too difficult to work out. I guess I will be stuck with it till then.

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C. Branscum

I use for cleaning jewelry and the rubber is not great for this

Reviewed in the United States on 23 May 2022

Style Name: Hobby KitVerified Purchase

Fine for metal but not great for my crystals the black rubber stains crystals. I just the tumbler base with a mason jar and that works but would have gotten a different tumbler if I had know the rubber would breakdown and stain my pieces.

Brian L. Wrona

Didn't do a very good job of shining the beach stones that I had

Reviewed in the United States on 29 September 2017

Style Name: Hobby KitVerified Purchase

Didn't do a very good job of shining the beach stones that I had. I haven't tried it with the stones/ crystals that came with it yet.
It does seem to be good quality, I have ran it for over 30 non stop hours without any problems

5 star		70%
4 star		14%
3 star		6%
2 star		2%
1 star		8%

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rough Gemstones, 4... › Customer reviews

Customer reviews

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rough Gemstones, 4 Polishing Grits, Jewellery Fastenings, Great STEM Science Kit for Geology Enthusiasts