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Your cart is empty.The 664DR Diamond Drill FlipBit features superior long life compared to other diamond drill bits and its flute design is faster at eliminating material compared to core bits. Its one-of-a-kind FlipBit design lets you drill two hole sizes with one bit by simply flipping the bit over to select a different size. The FipBit is ideal for drilling in both flat and contoured surfaces and can be used to enlarge holes and make small cuts. Makers will find the 664DR ideal for creating jewelry, ornaments, art, and decor. The 664DR Diamond Drill FlipBit can be used on glass, ceramic wall tile, glass block, stone, and glass bottles.
debbie
Reviewed in the United States on March 14, 2025
Ok I read the instructions. Had water on the ready! Went slow! Did not force the bit! And oh it went through beautifully but the instant it went throughIt (the bit) broke!!!! It’s easy to use. Cuts great but it’s a waste of money to pay that much for one bit to break that easy!!!
Sea otter
Reviewed in Canada on December 5, 2024
At first I was so pleased. Thought it was great. Love the small sized hole in my glass. Then the bit snapped off. Consulted with Dremel, and made sure I was doing everything right. Got another bit and it broke on hole 6 or 7, but no worries, I had bought a back up. Broke in 4. Using the other side (larger size) is disappointing too. My black glass snowman hats defeat these bits. Boring 1/3 way through in 3 minutes?… On to the next bit… no better. So not worth what I paid. Would be lovely if I could consistently drill holes in my 3 mm pieces of glass.
greg
Reviewed in the United States on December 23, 2024
I do not recommend for drilling agate. Bit will dull quickly or break even under water. Never use dry for drilling stone. Works well for materials of 7 or less on mohs hardness scale.
Cameron
Reviewed in the United States on January 23, 2024
Unfortunately I dropped my dremel one night and snapped tip off , so I needed another. These aren't always in-stock in big box store. This is name brand and the quality you would expect when you use it properly just don't drop it like I did. LOL. You can see in second picture what I use these for. I went ahead and bought 2 so I wouldn't be without. I really do like that I have a thin more precision side and a thicker side that cuts through faster
Sharon Paz
Reviewed in the United States on April 29, 2024
Perfect diamond drill bit for my glass pieces.
Peter Dickinson
Reviewed in Australia on May 5, 2023
I tried to drill a small hole into a quartz stone and the drill bit snapped as soon as it touched the stone. I have a lot of dremel products and have never had a problem. Very disappointing.
Jonathan Almaguer
Reviewed in Mexico on April 14, 2023
Llegó a tiempo, si sirve para su propósito, buen precio (solo lo he usado una ves pero funcionó excelente)
Yves Rochon
Reviewed in Canada on March 6, 2022
J’ai acheté ça pour percer de la pierre et du verre et je n’ai jamais réussi même que la mèche a cassé lors de l’essai.
Mary B.
Reviewed in the United States on March 26, 2022
Looove this bit. Perfect for drilling seaglass! I just wish the bit would last longer as each end only gets through 10 pieces at most.
Peter
Reviewed in the United States on July 14, 2020
Bit worked exactly as planned. Having two different size drills on one bit is great. Did drilling in a water bath. Bit maintained its sharpness, last hole drilled was as clean as first hole.
Adam Drysdale
Reviewed in Canada on November 3, 2018
Have drilled through rocks and sea glass, still going strong. Needs to drill under water to preserve the tip and it will serve you well
Kindle Customer
Reviewed in the United States on February 10, 2017
Seems good. It works both ways.
Gerald
Reviewed in the United States on October 14, 2017
This is a good bit but I did break my first 1 hence why I had to buy a 2nd one.
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