1mm Diamond Drill Bit Set (20-Pcs) with Collet | Compatible with Dremel Rotary Tools | for Jewelry Making, Glass, Stone, Seashells & Gemstones

Good drill bits. Use them in a Dremel to drill seaglass. I place the glass underwater and dril slowly, no problem at all. They last for a good amount of holes.

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.

Have use the same bit to drill several small pieces of mother of pearl. The bit did a great job creating small holes at the locations intended. Placed mother of pearl on a water soaked sponge, and did not force the bit to drill too quickly; worked perfectly.

I am really impressed with this set. The diamond tips drill clean, precise holes in glass, stone, and shells with very little effort and no cracking. The different sizes are perfect for detailed jewelry projects, and the included collets fit my Dremel with no issues. They feel well made, hold up nicely with regular use, and are a great value for the price. I would definitely buy these again.

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

Just got these today and I already turned four teacups into planters.

I drill seashells and these drill bits are excellent. I have used them for several years on 4-5 inch clam shells to 1 inch scallop shells. The drill bit and shell must stay cool to avoid cracking.

Not satisfied at all. I can even get the drill to go through a thin piece of resin to make a hole for an earring.

Came 5 days late.

These are great! Different sizes and the small ones are great for sm pieces of sea glass.

produits très cheap, je ne recommande pas

Work well ! And I can use them multiple time

Excelentes para perforar perlas 👌me encantaron