PentelMechanical Pencil Lead, Ain Stein, 0.3mm, 2B (C273-2B)

It's Pentel lead, it's already good. I don't know what makes this lead chemically different but it is unquestionably the best of the best pencil lead.Even the .3 is strong enough for most writers.

Smooth, strong lead; much better than regular Super Hi-Polymer lead from Pentel. Slightly less dark compared to that product line. Ain Stein 2B is less dark than Super Hi-Polymer B. Great for writing; however, I am still undecided on whether these are good for drawing. Graphite doesn't lay very evenly when layering and doesn't blend with regular graphite that well. It could be the additives or it could be my imagination.

The led works great, it looks darker and makes bold lines. It does break a little easier but it’s expected from a .3 mechanical pencil led. Met expectations.

I don't know too much about different leads, but I've been using these HB 3mm's for awhile now.- Precise, put the line exactly where you want it.- Hard, leaves a very fine and exact line.- Brittle, these break easily if extended more than 2 clicks out from the tip.- Not very dark. I use these as a 1st layer when sketching or drawing plans.- Even more difficult to pick up off of a smooth, flat surface without tweezers. Don't Spill!

Most people who use mechanical pencils are not knowledgeable about the softness of the lead. This is what I need, but not for every day writing. Lead slightly soft

Love 2b leads. Ain stein creates super smooth and rich lines. It’s a bit on the pricey side for 15 pcs. but it’s quality is well worth it.

Have several other of these Pentel leads in various sizes and hardnesses - and I think these a very good and reliable product. Just try to find them in stock on Amazon rather than directly from Pentel.. Because, if not in many cases they will be coming directly from Japan - like one of mine did and it took about 6-7 weeks to arrive

I bought this along with a Pentel GraphGear 1000 .3. I deliberately used up the lead the pencil shipped with, wondering if I would notice a difference. And I surely did. Darker color, smoother feel, and greater clarity. If you care about quality, try this lead.

Essas minas usam uma nanotecnologia diferente da linha Hi-Polymer, que promete torná-las mais resistentes à quebra. De fato, comigo, pelo menos, elas quebram com menos frequência. Elas também borram menos que as Hi-Polymer de mesma dureza. Porém, não há diferença perceptível na tonalidade do traço no papel entre as durezas B, HB e H. As B são mais macias na sensação tátil na hora de escrever (deslizam mais sobre o papel), mas as três durezas produzem a mesma tonalidade de cinza médio, própria da dureza HB. As B deveriam produzir um cinza bem escuro, quase preto, e as H deviam produzir uma tonalidade cinza mais clara.

Excellent product if you like to write with a harder lead than HB.

Me cuesta encontrar minas 3H. Estás son de buena calidad, no se rompen con facilidad. Son un poco caras, pero la calidad buena

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C'è poco da dire, sono le migliori che abbia mai usato. Delle HB di spessore 0,3 di qualità superiore...anche se piuttosto care.