Stone Carving Set Diamond Burr Bits Compatible with Dremel, 50PCS Polishing Kits Rotary Tools Accessories with 1/8’ Shank For Carving, Engraving, Grinding, Stone, Rocks, Jewelry, Glass, Ceramics

Very nice. Good price. Lots of bits. Good quality. Used only once so far but worked fine.

So glad I got these. Makes drilling my rocks so much easier. Good quality. They work great with my drill. Lots of sizes to use. Love them.

If you don’t use water, they don’t last long when cutting rocks (specifically chalcedony - Ellensburg blue). But for the price, not too bad.

These diamond burr bits are great price and does an excellent job in sharpening the teeth on my King Power stump grinder. It does take some time, but it save the time and money on buying a new set while the old teeth can be sharpen a few times in their lifetime before replacements.

The big set worked really well and were decently long lasting. The small ones didn’t work or have enough grit in them. So it was effectively half of what I wanted. I use these to carve into different stone materials, some are harder than others. Probably wont purchase again.

They really works

These are quite nicely made, they run true to the shaft and do not wobble at any speed. I am using them for work on ceramics, so not a tremendous strength test, but I do like the way they do exactly what I bought them for. I am using them both in a portable dremel and a flexible shaft hang-up grinder.

Got these to use with my tumbled rock. First attempt to drill a hole through to make some jewelry. Could not get it to penetrate the rock, was using with my Dremel and the bit bounced around at the start because I was having a hard time. Thought I had ruined the stone and expected to see it scratched up. But no fear, it left absolutely no marks. Tried with several other stones of different hardness value - still nothing. Got a bit from a different set, same Dremel, same speed, no problem putting in the small hole I needed. After using, ran my finger on the drill bit and it was very smooth. Very disappointing as I was excited or the variety of bits. Returning these, do not recommend.