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

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.

Great value for your money (I paid around $13). I bought these to grind down ceramic glaze drips, and these bits work well. I was able to grind down about 1/2" of glaze in a couple minutes. The bit was worn out by then though. Luckily there are a lot more in the pack. The texture these leave is pretty rough obviously, so it helps to sand down your ceramic with a finer grit of sandpaper after to get a super smooth bottom.

For the price I expected poor performance but they worked much better than thought they would. And as a bonus they were delivered on time.

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

So these bits work great, although I initially had issues with them fitting in the collet of my rotary tool (non-dremel). The shafts were too thin (1/8") and I wasn't able to tighten the collet down quite enough to hold them. Luckily, I have an older Dremel single-speed lying around, and found the collet from that worked fine.Any other bits I have bought that say "will fit Dremel" have always fit my rotary tool, so I'm not sure why these didn't.

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.

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!

I made 40 mugs for Christmas gifts. Unfortunately the ceramics store that did the glaze firing went over cone 6 and several of my glazes ran off the mugs. I didn’t have time to re-throw (and trim, and bisque fire, and glaze) more mugs and so I bought these bits for my dremmel. Potters often say that it takes more time to fix overgrazed pieces with a dremmel than it takes to make more mugs - because they don’t have these bits! These bits saved several pieces and improved a few more. Thank you!