Uni-ball NanoDia Low-Wear Pencil Lead - 0.4 mm - 2B

I'm a fan of Pentel's Ain Stein lead. However, I was using the 2B Stein lead in my Lamy 2000 and it was breaking more then I could tolerate. So, I switched to the Uni Nano Dia and, voila, breakage dropped significantly. The Nano Dia seems as dark as the Stein, but perhaps a previous reviewer is right that this Nano Dia is a little harder.

In any case, highly recommended.

This lead is quite good. It does exactly what the title suggest. It also has a high capacity rate with 40 lead pieces in each case this is an exceptional number comparing it to the tacky lead they sell at wallmart and so on. I highly recommend this

the lead is indeed durable. writes well. smooth, but as you would suspect, because of their construction, the grade of the lead itself seems to be a bit harder than whats indicated on the label.
that said, its a great lead, doesnt smudge too much and the lines are dark and crisp. just something to keep in mind when making your purchase, if you are use to a softer darker 2b, you may want to try the 3b instead.

When I first ordered these leads I was skeptical because these leads are new on the market. As I found out these leads are magnificent!! The lead smoothness is superb!! I love the way that these leads glide across everything from newsprint to coarse canvas. These leads do not catch or rip the paper. They offer a smooth dark lines(More so that I would have expected from a low wear lead). I have not broken one yet which makes me feel confident to use these leads espically across fiberous canvas(I always break leads over canvas). I have tested these leads against other leads that could be compariable in quality and strength. In my personal opinion these leads are the absolute best leads that I have used so far!! The best thing about these leads is that they last forever!!

I defenitley recommend the use of these leads. Mitsubishi UNI really outdid themselves this time around.

To all those who want to use the best of the best don't hesitate to try these UNI NANO DIA leads right away.

Before, my main lead was the orange AIN lead from Pentel. I thought previously that that lead was perfect as it was dark and strong. However, I was not completely satisfied with the lead and it was not smooth enough for me. So, I tried this lead and it was PERFECT. Now, this lead goes in all my pencils and it is a joy to use because it is so smooth, dark, and especially STRONG!!!