Who says diamonds are only for jewelry? They are exquisite for creating precious artwork as well. The Uni NanoDia Low-Wear Pencil Leads are infused with nano-diamond pieces to create an unusually strong and high-quality lead. Multiple lead grades are available.
I have been surprised at how well this performs as long as I am careful not to
advance too much lead at once. That's going to be the case with pretty much any
lead that's this small. This one doesn't leave an impression in the paper like
the HB did. It is dark but erases easily.