ILOVETOOL 0.8mm Diamond Drill Bits Tools for Jewelry Making Gem Stone Pack of 30Pcs

I drill through thick shells, jewel rocks and sea glass. I've been using the same bit for 2 months and although it is beginning to show a little dullness, it is holding up. It is a 1 mm and a strong Lil booger for sure!As long as this seller carries this brand, I will continue purchasing from this company!

The media could not be loaded. I ordered colored opals on Etsy & realized while they were in transit that they had super small holes & I wouldn’t be able to knot them on silk as I planned. I knew it would cost an arm & leg to send them back, so I ordered these diamond drill bits, & I couldn’t be happier. One bit (which is still going strong) drilled through two strands of beads without much issues. The only issues that occurred happened while getting the hang of the process…I broke one bead & punctured my middle finger (hence the pink finger tip protector in the video). My suggestion would be to not hold the bead so the hole is against your finger tip, as the bit could suddenly puncture through & cause this injury. The video shows a better holding technique. This product is very similar to a bead reamer (except it’s less graduated in size to allow for a more evenly sized hole & becomes motorized in your rotary tool, which makes it faster).If you need to enlarge the holes in beads I highly recommend this item…it’s affordable, effective & incredibly durable.

I drill holes in shells to make wind chimes and I love making them! I used to only buy the Drimmel brand bits. I could only do 40 shells or so before the Drimmel bits would give out. I got these for their price and am happily surprised! These bits are good and pointy, and they go though the shell nicely at first. After 10 shells the tip would break but I could keep going for a while after that with the now less pointy bit. When it starts struggling you get a nice sharp new one. All in all cheaper than brand name. These bits are a good value for my needs. If you’re reading this and plan to drill shells, make sure to use water. Put a sponge in a shallow pie dish filled with crushed ice and water. Drill the shell on the sponge and as you drill stick the bit in the sponge to keep it cool. You can even use a bit of water on the drill site. It’s fun to drill the holes too. Happy shell crafting!

Fit a standard dremmel, which is a plus. We like the small, battery powered dremmel best for rock drilling. Easy on the hands. Slow drilling in quartz, but they get the job done. They wear out pretty fast.

absolutely the worst bits ever no diamonds at all i threw in garbage

I had snapped off a 1/16" High Speed Steel drill bit trying to drill a vent hole into the side of a flintlock pistol barrel made of steel. So I tried using a Tungsten Carbide drill to drill it out. But it snapped off, too, making the situation worse. I bought this pack of diamond-tipped drills to try to grind out the snapped bits. And they worked! I went through about 5 of these to get the job done, but being so inexpensive, that was not a problem. I used thread cutting oil as a lubricant.

I had to drill some holes in some rock and tried these out. Sort of worked, but each bit lasted only a short time. Got the job done, but used more bits than I thought reasonable.

Way back when I first started getting small cracks on my windshield from getting hit by flying rocks, I took my car to a windshield repairer who "fixed" the cracks by taking a small drill and drilling tiny divots at the ends of the lines of cracks radiating from the central strike point. This would, he said relieve the strain on the cracks and prevent them from spreading further.Since then, I've gotten more small cracks on my windshield from rock/debris impacts and I've had other people do the same "fix" on my windshield.So far none of the cracks have spread past the crack stops, including the first ones done nearly 14 years ago. And so it seems that the crack stops work.When I got yet another small crack in my windshield recently, it finally dawned on me - hey, I have a dremel tool, I can do this myself! I just need to find the right drill bit!So I got the smallest tip of this brand - the 0.4mm tip, and it worked great! Just slightly touching the tip to the windshield caused a small cloud of glass dust to erupt and a divot to form.I only needed one drill bit to do this crack and touch up some of the other cracks.Now, these are just small divots on the surface of the outer layer of glass. Windshields have two layers of glass with a plastic laminate in between and the goal of the crack stops is to just put a divot at the end of the crack, not to drill all the way through the windshieldJust sayin'.