DRILAX24-Piece Diamond Drill Bits Set (1mm, 1.5mm, 2mm, 2.5mm) Compatible with Dremel Rotary Tools – Includes 4 Collets – Diamond Tipped Drill Bit for Stone, Glass, Sea Shells & Jewelry Making Tools

This diamond drill bit set works exactly as the description claims. We use these in a Dremel tool. (The set comes with the adapter pieces that hold the bit snug). They do take some time to drill through thick materials, but we were able to drill through glass easily by starting at an angle, then straightening out. The trick is to be patient, and do some test pieces to get the pressure right, and a feel for it. We purchased a small $10 metal vice with a plastic clamp piece on Amazon as well, which we set in a bowl of water to hold the pieces for the drilling process, and that worked excellent. The bits seem very strong and well-made. Quality product, and nice that you get so many for the price! Highly recommend for jewelry making, crafts, drilling beach stones, etc. just don’t forget you have to drill under water!

I had a dream and a Dremel that I wanted to use to drill holes in stones for jewelry. Initially the internet suggested that I:1) get the adapter to turn my dremel into a drill press (great advice), and2) use diamond-coated grinding bits to do this (terrible)I ended up with a broken stone after 15 minutes of trying to gently work through the stone (it also barely made a dent before the stone broke), SO, I flipped back through the different options, and then I bought theseLIKE A HOT KNIFE THROUGH BUTTER in comparison. Drilled 5 stones so far, each one took less than a minute and turned out perfectly.They come with the correct-sized cup to hold the various-sized bits in your Dremel. No issues, a million stars.

Great product for drilling seaglass. I am only about 2 months into my fun seaglass jewelry journey and these have worked great with my two different drills. I’ve had two of the smallest drill bits break, and have blown the front/back out of some of my glass pieces, but I truly believe it was user-error as I am still new to this. I completely recommend trying these if you are new to seaglass drilling!! Just make sure you do your research before hand and drill in water.

Edited to add that the company contacted me, was so very pleasant, and replaced the collet/adapter quickly. I adjusted the review. Customer service is amazing!I originally gave the product a 3 as the little chuck adapter thingy broke almost immediately. I managed a work around but I was a bit put out that I was all ready to work up a pile of things and the adapter thing breaks right away. It took a while to figure out the work around and substantially slowed my day. The drill bits themselves seem to be of good quality for the price.

The actual diamond bits are good. Had one snap but i don’t think I had it in the Dremel far enough. The Collet however-which is the supposedly brass piece that fits into the end of the Dremel to hold the drill bit. Was a piece of crap. It broke literally seconds after I tried to pull it out of the drill. The sides just snapped right off so i had to get new ones. Over all once i had that better collet piece and if you use the bits properly they’re good

Worked well in drilling stones

Save your money! The drills are basically unsharpened blanks with an abrasive coating. I have tried all with pin vise and Dremel and none will make a chip. Tried cutting aluminum and only made a mark from abrasive. 3 of the 1mm bits do not have a point. Collets slip as well. 0 of 5 rating.

I only used 1 of the drills (2mm). But I drilled through 4 pieces of small granite jewelry to make the pieces necklaces. They worked without no issues.