JINGLING Diamond Grinding Bits 1mm Spherical Head Carving Ball Bur Pack of 30Pcs

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++++

Cheap, gets the job done.

Great for drilling holes in glass

Good quality diamond ball burrs. I like that this seller sells sets with one size and shape. I used to have to buy assortments to get a single 2mm ball burr that i mostly use.

Love these. They are perfect and they fit in my engraver machine. They are smooth and I love that they come with an extra piece if you need to fit them to something else! I have bought these in a multitude of sizes.

They sent me 2mm bits instead of 3mm. I am still using them, but need to enlarge the hole with my one remaining 3mm bit. (Drilling holes through polished stones) Not the best bits in the world, but for the price I can't complain too much. I would reorder them, but really don't want more 2mm bits. LOL I would give 4 stars if they were the right size.

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

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.

Love these. Nice and sharp!