Durable 20Pcs Diamond Grinding Bits: 12mm Cylinder Head with 1/8 Shank - 45mm Long Diamond Coated Burr Mounted Point Review

Simply put, don't take them. They are so unbalanced that they vibrate like crazy, rendering them useless. At the lowest speeds this is fine, but if you increase the speed at all they will vibrate like mad which will eventually break your dremel in the long run. Avoid this at all costs.

I wanted to use them for my dog's claws. I was very disappointed when I opened the package. Very cheaply made. Every bit was wrong and could not be used in the Dremel tool due to the strong vibration. The "diamond" surface covered my fingers as I touched each particle. I sent them back but didn't expect them to last very long.

They are great, just as described. They also come in an organized, pocket-like plastic binder with small slots for each bit to insert. I only wish I had ordered a size down as I was trying to match what I have at home. So don't take the pictures as a reference because there weren't many of them. Otherwise great, but also a great price!

I'm creating a mosaic in the first image about 33 inches in diameter. ) is shown in the second figure. They worked absolutely perfectly. I used them in a dremel with one of the bases to keep the drill bit at the correct height from the tile and adjusted the depth. First a shallow cut, then a deeper cut, then a full cut. I kept the cut damp with a cloth dipped in water. Grind, grind, grind, wet, grind, grind, grind, wet. you have the idea I used two of the 20 bits included in the kit to sand the