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A comment on Ask HN: What are the best-designed things you've ever used?. Parent comment

Re:Ask HN: What are the best-designed things you've ever used? by graycat on Saturday November 27, 2021 @08:05AM (#29359854)
I wrote my Ph.D. dissertation in applied math with a Pentel 0.5 mm. Soooo, there's also a Pentel 0.7?? GOOD. Thanks!
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Re:Ask HN: What are the best-designed things you've ever used? by rainbowzootsuit on Sunday November 28, 2021 @08:05AM (#29368603)
Pentel makes 0.3, 0.4, 0.5, 0.7, 0.9mm

After trying all of them, I really gravitate to 0.4 and 0.7 depending on what I'm doing with it.

0.7 is great for general writing and notation, while 0.4 is better for drawing figures.

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