TEMO 30 pc Titanium Diamond Coated Burrs Glass Drill Bit Grit 120 Medium with 1/8 Inch Shank for Dremel and Other Rotary Tools

These are very good! Almost all shapes to suit your needs. Moderate grit - grind away at your own pace. Tried others and they bend / warp easily lose all their diamonds fast - these kept their straight shaft all the way through.

Good if your using them for delicate items, small grinding with water. Will eat the diamonds right off with quartz or higher without water and a soft touch until you get grooves for the diamonds to set and have room to burrow while managing the heat, not cold but room temp water. Some do just curable fyi, but the price is so low its fine, its 1 out a 10 that does this if it happens.

This is the second time I have ordered this product and have had it broken and half the drill bits missing. I definitely will not be ordering again. Too much a hassle for so little.

These work great for hand engraving glass and semi precious gemstones. They are still in real good shape even after several uses and are the perfect size for more intricate work.

Nice set.. and tho I'm not going to return it, the plastic box the bits are stored in was open in the Amazon envelope.One of the bits fell out on the floor. Before opening the package, I could tell there were pieces loose. I recovered all of them, the one that fell on my living room floor, one that was at the end of the driveway, several that were stuck in the envelope folds. Total missing, 1. I'm please with the product, but someone needs to ensure the plastic storage box is taped for shipping... Some one will hopefully not find a drill bit in their tire... :(. Thank you.

I got these bits to drill holes into sea glass, shells and rocks. They did a wonderful job with the sea glass & sailed right through the shells! I broke a few on the rocks, but that's to be expected. These were way more affordable than any others I saw- I would definitely recommend them!

I was short 2 drill bits in this package. When I received the package, the container was already open and all of the drill bits for floating around in the envelope. And I am two short. If I didn’t need to use these right away, I would return them.

The product came with the plastic box cracked open and the drills spilled out inside the bubble wrap Manella envelope. I would have sent it back but I needed the Tool desperately so now I just have to deal with a broken container to store my nice Drills