How to Choose Fountain Pen Nib: EF, F, M, Fude(Small), Fude(Large)

Sep 18, 2026 Leave a message

The nib defines your whole fountain-pen writing experience. Same pen will perform completely different with different nib tips. Whether you are shopping for an elegant office signature pen, a calligraphy pen silver or a Comfort Grip Fountain Pen, nib selection matters a lot. Below we break down 5 common nib options: EF, F, M, Fude(Small), Fude(Large), including typical line width ranges, to help you match nib to your handwriting and usage.

 

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EF (Extra-Fine)

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  • Typical line width: approximately 0.38–0.48 mm
  • Best for: tiny handwriting, planner annotation, dense class notes, document marking. It works perfectly with our Comfort Grip Fountain Pen for long-hours fine note-taking.
  • Pros: Fine lines, lower ink consumption, less bleed-through on regular paper.
  • Notes: May show more paper texture; pair with smooth paper for a cleaner feel.

 

F (Fine)

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  • Typical line width: approximately 0.45–0.55 mm
  • Most popular all-round beginner-friendly nib.
  • Best for: daily school notes, office memos, general journal writing. The balanced line fits our Comfort Grip Fountain Pen for all-day comfortable writing.
  • Pros: Clean and readable on most paper types.
  • Tip: If you are buying your first fountain pen, F is a safe starting choice.

 

M (Medium)

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  • Typical line width: approximately 0.55–0.70 mm
  • Delivers smooth, moderately broad lines with rich ink flow.
  • Best for: office signing, journaling, general correspondence. This is the preferred nib for an elegant office signature pen, delivering rich lines for formal signatures.
  • Pros: Smooth writing and better ink shading.
  • Note: May show more bleed or feathering on very thin paper.

 

Fude (Small)

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  • Typical line width: approximately 0.40–0.90 mm (variable by angle and pressure)
  • Fude nib is a bent-tip brush-style nib for line variation. Small fude has a moderate bending angle.
  • Best for: beginner calligraphy, casual brush-style handwriting, signature decoration. Great upgrade option if you own an elegant office signature pen and want more writing fun.
  • Pros: Thinner strokes when held upright, thicker strokes when held flatter; easier to control than large fude.

 

Fude (Large)

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  • Typical line width: approximately 0.60–1.20 mm or wider (variable by angle and pressure)
  • Large fude features a bigger bent angle for dramatic stroke changes.
  • Best for: Chinese / Japanese calligraphy practice, artistic writing, creative journal work. This nib brings out the full beauty of a calligraphy pen silver, creating striking thick-thin brush-like strokes.
  • Pros: Strong thick-thin contrast and expressive brush-pen feel.
  • Note: Requires practice; not recommended for pure daily note-taking.

 

Quick Selection Checklist

  1. Small compact handwriting: EF (approx. 0.38–0.48 mm) - pair with Comfort Grip Fountain Pen
  2. Daily note-taking & general use: F (approx. 0.45–0.55 mm) - pair with Comfort Grip Fountain Pen
  3. Signature, journal, smooth rich writing: M (approx. 0.55–0.70 mm) - ideal for elegant office signature pen
  4. Try fude style for beginners: Fude (Small) (approx. 0.40–0.90 mm)
  5. Calligraphy & artistic creative writing: Fude (Large) (approx. 0.60–1.20 mm+) - perfect for calligraphy pen silver

We support OEM with above-listed nib options for custom fountain pens, including elegant office signature pen, calligraphy pen silver and Comfort Grip Fountain Pen. Contact us for samples and wholesale quotation

 

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