Review on 💎 Dremel Craftsman MTP Diamond Gemstone by Johnny Bloomer

That must be a zero star. I just can't understand how you can drill holes in sinks with these "diamond drill bits". I've tried a few bits but haven't even made a dent on many different shells. Instead of holes, I see dark gray dust forming around the bits. The diamond dust will probably flake off the bits instead of making holes. ended up going to the hardware store for microbits and they made holes in the same projectiles that these "diamond bits" couldn't make. Since the holes are made with microbits, I can now see the white dust from the projectiles collecting everywhere. just made a hole Of course the microbits broke after a few projectiles, but they made holes.