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

I bought them to engrave a bottle and they worked amazingly. I was a first timer so was scared.

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.

Great for drilling holes in glass

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.

Great for engraving on 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.

Had 1 obvious dud in the package so far, no abrasive on deformed tip. Let the weight of the dremel do ALL the work, don’t press down on the bit at all. Shafts are a just a bit weaker than some I’ve had. Submerge glass slightly of course. I got about 16 holes in sheet glass with the first bit so far. Hopefully the rest of the bits perform this well. I’ve paid a lot more for bits that didn’t do half as well. I always use the domed bits between 1.4 and 2.5 mm. I would have given 5 stars if not for the 1 bit that was bald. If I could rate in partial stars I would have given 4.5

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.