The Nib Guide
Sizes, grinds, flex, and fixes — the part of the pen that decides everything.
Every fountain pen question eventually becomes a nib question. Size sets your line; grind sets its character; tuning decides whether the whole instrument sings or scratches. This hub collects the sizing translations (Japanese F ≈ Western EF), the grind footprints, and the ten-minute fixes that rescue most "bad" pens.
The desks
Key terms
Common questions
Reader favorites
The short list — see the full ranking on the best-pens desk.
Wordsworth & Black Fountain Pen Gift Set
$43.85
Check price on AmazonPilot Custom Heritage 912 Fountain Pen, Black, FA Nib
$261.60
Check price on AmazonLOCHBY® Pocket Notebook (3.5" × 5.5")
$6.99
Check price on Amazon
A plain-ink note: some links on this page are affiliate links. As an Amazon Associate we may earn a commission when you buy through them, and we also earn from other programs such as eBay Partner Network — at no extra cost to you. It never changes the price you pay, and it never changes a verdict.
66 guides on the desk
62 pens & inks vetted
The specimen press
Original nib & ink art, made to order.
