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

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.

I used the bit to drill a hole in a piece of seaglass I picked from the beach in Puerto Rico. I laid the glass on a saturated kitchen sponge to keep the bit wet and I let the bit do the work. No extra pressure. In just a few minutes it penetrates the glass.

I bought these to try for drilling sea glass. They are a little inconsistent in the quality, each bit seems to vary, but they do work so it's an average product. For other applications it might be great, I am only using them for glass.(updated review) I have now worked with them for quite some time and they are far superior than other brands. Use a dremel with a press for best results.

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!

Those bits are breaking with first touch of material , even was a plastic. Buy something better

I needed something to drill holes in shells and glass. The bits worked very well on the shells. The glass took longer to drill through depending on the thickness.

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.

I bought this set to make windchimes with stained glass scraps. Interestingly, the Dremel 664DR bit was an add-on item for $1.99 at the time of my purchase. I got them both. This set far exceeds the Dremel bit. I was able to drill holes in half the time it took with the 664DR. I’m using the Dremel 4200 with quick release and they fit perfectly. Highly recommend!

I bought these to drill small holes into borosilicate glass to adhere silver bails into to make glass pendants. They work well but one already broke on the first day of use. Maybe I was pushing too hard but it snapped right at the start of the diamonds. So it seemed like a weak spot. The only product I have liked more was Lee Valleys diamond bits but this were a great alternative, because LV doesn’t sell a pack of one size, only variety packs. Would buy these again.

Wir in der Beschreibung

Very good, suppose I should have read description more closely, there’s really only about three I can use for drilling holes in pendants,

Not fully in use yet as the summer has arrived, but looks good to me.

Worked well for glass, man made materials and softer stones but broken easily when drilling into harder stones like quartz and agate.Overall good as advertised.