Rock Tumbler Polish - 12000 Grit Aluminum Oxide for Final Finish, Step 5 Polishing Grit for Rocks, Gems, Glass & Jewelry Making - Ultra-Premium Refill

We are new to rock tumbling, and this stage 5 grit was fun to play with. It is a very fine powder, and it gives the rocks a nice shine! It really does work nicely. This is a nice sized container that will tumble several loads of rocks. We ran it for 5 days with rocks that had been through stage 4 on speed 1. I'm looking forward to using it again!

Worked great on my rocks I used it as a fifth stage for polishing

Works good

The best thing about this product that I like is the results I’ve had polishing grit before that’s supposed to polish rocks however, it did an OK job but this stuff doesn’t excellent job 4 Four days in the Tumblr on one or two in the rocks shine like diamonds what more can I say great value for the money

Good for Glass Stove counter tops too !Produces a fine polish !!A +

No better than stage 4. NO SHINE

The Komestone step 5 polishing grit is amazing. Steps 1-4 took my stones with rough edges, and smoothed them out, then step 5 polished them up. I've had great results with their products and I highly recommend their refill kits. Their customer service is also wonderful. I've had questions, and they always respond within 24 business hours to answer my questions which is greatly appreciate.

I was hoping to get more impressive results from this fine grit. After doing 4 rounds of tumbling with 1-4 grits, I gave this a try on speed 1 for 7 days. Perhaps I should have included a drop or two of oil, or been much more careful about the rocks I tumbled (as some may have had small fissures). But they don’t feel any smoother nor do they look more finely polished. I’ll try again with a new batch and hope for better results. Otherwise it seems like it is a waste of time and money. I will read other reviews to see if I am missing something or a step that might improve my results. 🤞