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Pentel Hi-Polymer Ain Pencil Lead - 0.3 mm - B

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Pentel Hi-Polymer Ain Pencil Lead - 0.3 mm - B - PENTEL C253-B
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20 leads.

Pencil Lead Hardness (from Wikipedia)

Pencil lead is graded by hardness: a greater percentage of clay results in a harder lead. H (harder), F, HB and B (softer) are pencils of average hardness. Pencils ranging from 2B to 9B are softer still and are used for sketching; 2H to 9H are harder than average. A common American #2 pencil is equivalent to HB.

In order, the leads are (from hardest to softest) 9H | 8H | 7H | 6H | 5H | 4H | 3H | 2H | H | F | HB | B | 2B | 3B | 4B | 5B | 6B | 7B | 8B | 9B.

The harder the pencil the lighter the mark, e.g. Bs tend to a create darker colour that can be smeared easily.

Model NumberPENTEL C253-B
Weight0.2 ounces
Lead Color Black
Lead Diameter 0.3 mm
Lead Hardness B
Lead Type Graphite
Quantity in Pack 20


July 8, 2013
I like these leads, but...
Verified Purchase
I like these leads, but I think they're better suited for artistic work than what I'm doing at work. When I bought the black Kuru Toga, I wanted to try a variety, so here are my conclusions for use in writing numbers on spreadsheets at work:

B: Nice dark lines, but a bit on the bold side; the Kuru Toga engine seems a bit too slow to keep up with the wear so the lines look as if they could have been drawn with my old .5mm Papermate.

HB: Still nice and dark but finer. The engine still seems a bit slow to keep up with wear but it's not as pronounced as with the B leads. I suspect this is because I'm writing numbers and not the shorter strokes of Kanji. The spreadsheet is easily readable and copyable, and I can do things like write two lines of printing in the space normally occupied by one. (Whether the home office can read it without a magnifying glass is debatable. Heh heh.)

H: Lines are a little faint but readable and I have to boost the darkness on the copier at work for the reports I do, otherwise it comes out too light to read. The lines themselves are razor-sharp and seem to be in the sweet spot of the Kuru Toga's engine when writing numbers.

April 29, 2011
Perhaps fragile compared...
Verified Purchase
Perhaps fragile compared to the best leads (maybe Stein?), but when compared to no-name lead, this 0.3 is stronger than other 0.5.

May 25, 2009
Good lead, but very fragile!...
Good lead, but very fragile! :]

March 21, 2009
good if your on a budget,...
Verified Purchase
good if your on a budget, or if you have a really nice .3 pencil to put this in, otherwise in an average .3 mechanical pencil, its breaks pretty easily. pay the extra $1.50 for nicer stuff if you have a heavy hand when you write.

March 11, 2009
I recently bought this...
Verified Purchase
I recently bought this lead. It write in very thin lines. Basicley the pencil version of the hi-tec-C. Great quality led, the lines are also a very nice shade.