ZFEDiamond Burr Bits Drill Kit for Rotary Tool Metal Woodworking Router Grinding Engraving Carving- 1/8"(3mm) Shank Pack of 90Pcs/ 3 Sets

Some of the thinner bits are obviously more fragile but lots of bits to make whatever happen. I'll probably purchase again when I need to replace some. Pic in the photo was done with these bits. I'm just starting to learn so again, helpful.

Works like should

Good for knocking off burrs or maybe engraving something. Price is right but keep in mind they are not heavy weight tools.

These bits work wonderful and I am very happy with this product

Not nearly aggressive enough for slate, may be better suited for finishing. Cheap enough to save for the rare time they’d be useful.

You get 3 sets for the same cost as other offerings - what a bargain I purchased 2 sets

I was really let down by the quality of these the diamond coating on the bits wares off after just a few mins of using and I used them with and with out water save your money just not worth it sadly.

Good bits but not great how I was hoping to use them. I am a cosplayer and was trying to use these with a Dremel to remove imperfections and supports from 3d prints. Unfortunately, the bit clogs up with the filament when it heats up from the friction. You can soak the bits to dissolve the filament, but this is a timely process.