Since the click type mechanical pencil became popular almost forty years ago, I
have owned and relied upon many, many different pencils, erasers and types of
lead. Over that period I have used mostly Pentel lead, usually in B hardness.
A few years ago I switched over to 2B to get a little more smoothness and
blackness. Recently I bought some of this Hi-Uni in 2B. Wow - it is probably
the smoothest lead I’ve ever used. Perhaps a bit softer than the Pentel, it
is very smooth and black. Glad I tried it.