60 Grit Diamond Grinding Bits Compatible with Dremel Rotary Tool, 20 Pcs Stone Carving Diamond Drill Bits with 1/8 Inch Shank for Stone Carving, DIY Grinding, Polishing, Engraving

Outstanding tools. Great for harder granites!!

These hold up well for how cheap they are. Fit my corded Dremel and I used to grind concrete down in some tight spaces.

Great item, great value! I use them quite often and like the way they work very much

This was my first time purchasing these Dremel Diamond bits and they last longer than I expected. The variety available in this set is awesome. They are easy to use and great value for the money!

Have been using product to carve detail in quarts. Last as long as anything I've purchased from big box stores, and this set cost as much as one individual bit from those stores. Serves their purpose well.

When i use these bits they will work fine for about a minute or so till the start sliping and cause the chuck to loosen. I know its not a problem with my dremel because i have other bits the same size that dont get loose when I use them. I also expected smaller bits but i may not have paid as good attention to the sizing. They seem to be durable but they arent my favorite.

Great product.

I had to grind some hardened steel and these bits effortless did the job. Take your time and let the bits do the work for you. Apply minimal pressure and do not use any sort of lubricant. Spin at the fastest speed that you can. Depending on the hardness of the piece that you are grinding you may need to use more than one. I ended up only using two but every job is different. I highly recommend these bit and will definitely be buying another set or sets to give as gifts. Happy grinding!