Customer Reviews

The UNI "H" .3mm lead is equivalent to Pentel's "HB" lead. If you're going to use different lead grades, then stick to one brand, otherwise you'll end up wasting money on something you didn't expect like I did.

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!!!

This is fantastic lead. It writes so smooth and it has not broken on me. It also lasts a Long time because I use a piece every two days that's great. Buy it.

i love this lead SO much... it takes FOREVER to run out of lead in a packet. this canister is filled to the max with high quality, crisp, smooth awesome lead. i have this lead in my main pencil and i luv it so much, if you are considering any other lead besides this one, then you are wasting your time

2B is the best for writing. I love this Uni lead. It dark and strong. It as good as the pentel AIN 2B.

I've found that this particular grade of lead is great for super dark writing. It really stands out on the paper. It's almost as dark as a ballpoint pen. But with my style of writing, every other sentence I'm advancing the lead. I guess thats what I get for using such a soft lead. It also dosen't work well with the Uni Kuru Toga. The mechanism that turns the lead dosen't turn the lead far enough for a softer lead so you still end up with broad points on the lead. Bummer! But still a great product!

this is a really good lead pack and this wasnt made to be strong it was made to last long

I purchased Pilot Neox High-Purity Graphite Pencil Lead - 0.5 mm - HB, Uni-ball NanoDia Low-Wear Pencil Lead - 0.5 mm - HB, and Pentel Stein Enhanced Silica Pencil Lead - 0.5 mm - HB in one order, after looking at reviews for all the 0.5mm lead available on JetPens, trying to find the one that erased the best and was longest lasting. I compared all three in a Rotring 800, on Rhodia 80g paper(A very smooth paper), without twisting the pencil(So they were all worn to the same point when I wrote with them). This was my second favorite of the bunch, although all three are very good leads, that I would not hesitate to recommend to anyone. This left a slightly lighter line than the Pilot, about the same as the Pentel, and lasted probably 1/3 longer than the Pilot, but 3/4 as long as the Pentel. It erases nearly perfectly, leaving almost no trace behind, erasing almost as cleanly as the Pilot, but far better than the Pentel. Very hard to accidentally break, being able to easily write with about 7mm of lead outside the pencil, if I was careful, doing about the same as the Pentel did in breakage testing.

Two words: GET IT!

lead is strong and durible when it comes to writing small word.

I am a pencil portrait artist and I give this lead the highest rating. It is soft and dark, but not so delicate that it breaks all the time. This I can really work with.

Dark, soft, not easy to break. The case slides the half of the top to one side, so the leads are easy to pick. One of my favorite leads.

i love this lead. its very strong and it writes smoothly and crisply. i like it over the ain stein because it is crisper than the ain stein, but if u like ur lead smooth, then i suggest getting the ain stein lead

I got this lead because I wanted something dark for legibility. This lead writes a smooth dark line at the expense of durability. It is extremely prone to breakage (at least in my uniball multipen). I find myself switching to wooden pencils because of this annoyance.

If you find yourself breaking leads, it won't work for you, just in the course of writing I press too hard for it :( other than that however it's a good lead.

Smooth lead, little breakage. I use it in my kurutoga. Tried it after years of the tacky pentel stuff from staples - never going back!

It's good, but I'm afraid Ain has it beat in the strength department. It broke, Ain didn't. That's all I have to say. However it writes smoothly and I haven't worn it out yet, it's also not in my main pencil though (sorry Ain won the strength test so it's in my main pencil)

The lead is so thin that it tends to snap and there's only 15 pieces so I run through a tube in less than a week.

i have never tried this lead before, but is the low wear lead better of the hi-destiny one???