An extra fine (EF) pen typically has a line width of around 0.4mm.
Extra fine pen nibs are designed to produce very thin lines, making them suitable for detailed work, intricate drawings, or writing in small spaces. The exact line width can vary slightly depending on the manufacturer and the specific ink used, but 0.4mm is a generally accepted approximation.
Here's a breakdown of why an extra fine pen might be your best choice:
- Detailed Work: Ideal for tasks requiring precision.
- Small Writing: Perfect for fitting more text into a limited space.
- Certain Paper Types: Sometimes preferred on very smooth paper to minimize feathering (ink bleed).
However, consider these points when choosing an extra fine pen:
- Ink Flow: They can sometimes be more prone to drying out or skipping if the ink flow isn't optimal.
- Paper Texture: On very rough paper, the fine tip can catch and drag.
