JINGLING Diamond Grinding Bits 3mm Spherical Head Burrs w Shank 2.35mm Pack of 30Pcs

These are great. I bought to sign art glass and they work perfectly. And so many for a reasonable price.

Great quality and did amazing for etching names stone 😍👍👍 Will def be purchasing this again

I just started glass engraving and these are working well. They seem durable, easy to use and we shall see how long they hold up.

These are amazing for engraving glass which is what i bought them for, i use a regular nail drill and these bits fit perfectly but there is also a 2.3mm brass collet included that can adapt these bits for use with a Dremel tool. I don’t know about durability yet since i just started using them but the difference between this tip and the one i was using before (that was meant for nails, not engraving 😆) is pretty significant. I’ll drop a pic but comparatively the previous bit was only scratching the surface rather than grinding, as you can see in the very bottom row of lettering which was when i was using a different bit not meant for this type of work (clearly). This bit is much more of a traditional etching look with more control than an etching cream. As long as they don’t break or wear out quickly I’ll def be purchasing again!

I’m impressed. I ordered two sets, the grit and shape is pretty uniform across the board, I had one that arrived broken though. Was surprised to find each came with a collet to fit a dremel. The fact I can get 60 of these for just over the price of one name brand is mind blowing. In use, they are lasting as long (if not longer) than dremel brand, with a more uniform wearing of the diamond grit. This is going to save me so much money.

Perfect A++++

I use these to engrave a variety of surfaces, likely including some they aren't meant for. I will say they don't last quite as long as some of the name brand ones... but it's so close it's barely noticeable. These are incredibly affordable and a great option! Especially if you're engraving things like glass!

Cut well when new, but wear out very quickly even if used at lower speed, and frequent pauses for cooling in water...

Die Aufsätze machen sich super zum gravieren. Hätte ich nicht gedacht. Werde ich bei Bedarf wieder bestellen. Lieferung erfolgte sehr schnell.

It was not like I expected , it is like very normal bits

High Quality Product

Burs did not engrave well. Did not fit my device

This is my 3rd time ordered Good item, fits my micro drill. However, get full really quick with engraving. Not a big deal though.