Uni Pin Fine Line Drawing Pen, 0.5 mm, Archival Pigment, Water-Resistant, Low-Bleed, Textured Grip, Ideal for Diagrams & Notes, Light Grey – Pack of 12

The 0.5 mm tip provides a balanced line width that remains readable and consistent, making it suitable for clear diagrams and legible annotations without overly bold strokes.

Archival pigment inks are designed for long-term stability, offering waterproof performance and resistance to fading on many paper types, which helps important work stand the test of time.

Yes, the ink is waterproof once dry and engineered to minimize feathering on planners and grids, helping achieve clean, crisp lines.

The textured barrel provides better tactile feedback and grip, helping you maintain steadier control during tight corners and long, precise strokes.

Yes. The metal-clad tip is designed to work well with rulers and stencils, reducing snags and ensuring smooth lines when drawing guides.

Use it for diagrams, labeling, precise notes, subtle shading in illustrations, and any work where a low-contrast, consistent line is helpful.

Cap the pen when not in use, use it on smooth paper for crisper lines, and store it in a cool place. Allow ink to dry before handling the page to avoid smudges.

The grey version provides a low-contrast option ideal for subtle diagrams and annotations, while the black version offers higher contrast for bolder lines. Compare here: https://fepy.com/products/uni-pin-fine-line-drawing-pen-0-5mm-black-pack-of-12

A 0.3 mm tip yields finer, crisper lines suited for detailed technical work, while 0.5 mm offers faster, more visible lines for general diagrams. See the 0.3 mm option here: https://fepy.com/products/uni-pin-fine-line-drawing-pen-0-3mm-black-pack-of-12

Yes. A 12-pack reduces cost per pen and ensures you have spares for ongoing projects, making it a convenient choice for regular annotators and students.

The light grey Uni Pin 0.5 mm uses archival pigment ink designed for general school and office use and is suitable for typical classroom environments.