Uni Pin Fine Line Drawing Pen, 0.1 mm, Archival Pigment, No-Bleed, Textured Grip, Ideal for Shading & Sketch Details, Sepia – Pack of 12

A 0.1 mm tip produces hairline, highly precise lines ideal for micro-detailing, fine cross-hatching, and tiny annotations. It’s best for crisp outlines and subtle shading nuances where thick markers would overwhelm the page.

Tip size: 0.1 mm; Ink: archival pigment (waterproof and fade-resistant); Bleed resistance on typical sketchbooks and pads; Textured grip for improved control; Metal-clad tip designed to work cleanly with stencils and rulers; Color: Sepia; Packaging: Pack of 12 pens.

The pen is designed to resist bleed on standard sketchbooks, planners, and grid pads. Paper weight and finish affect bleed-through, so for very light papers you may want to test a line or two before heavy shading.

Build up layers slowly with the 0.1 mm tip, using light hatch marks and cross-hatching to create depth. Vary pressure gently to control line darkness, and let layers dry between passes to prevent smudging. Sepia tones work well for warm shading and classic diagrams.

Yes. The metal-clad tip is designed to hold its edge when used with stencils and rulers, helping you maintain clean, precise lines while drafting or detailing.

Cap the pen when not in use to prevent the tip from drying. Store horizontally or with the nib pointing slightly downward in a cool, dry place away from direct heat. If the ink starts skipping, verify the cap is secure and the tip is clean.

Yes. The Uni Pin Fine Line ink is designed to be non-toxic and suitable for art and classroom use. It uses archival pigment ink crafted for durability and long-term preservation of your drawings.

Uni Pin fine-line pens are designed as disposable tools; when the ink runs out, you typically replace the pen with a new one rather than refilling the cartridge.

For frequent shading and fine-detail work, a pack of 12 provides a cost-efficient supply of reliable 0.1 mm sepia fineliners. The consistent line quality, archival ink, and sepia tone can reduce the need for frequent replacements, making it a solid value for artists and designers.

If you’re exploring similar 0.1 mm archival fineliners on Fepy.com, you can check these options: Staedtler Pigment Liner 0.1 mm (same precision, different brand) at https://fepy.com/staedtler-pigment-liner-01 and Sakura Pigma Micron 0.25 mm for a slightly thicker line option at https://fepy.com/sakura-pigma-micron-025. You can also browse the broader Fineliners category at https://fepy.com/fineliners for additional picks and color variants.

Yes—Fepy.com carries other Uni Pin fine-line options in similar tonal ranges. For example, you can explore additional Uni Pin fine-line products and sepia-style inks at https://fepy.com/uni-pin-fine-line-drawing-pen-sepia and compare with other sepia or brown-tinted fineliners in the Uni Pin lineup at https://fepy.com/uni-pin-fine-line.