Tombow MONO Drawing Pen Fineliner 0.35 mm Black

The Tombow MONO Drawing Pen is a high-quality fineliner designed for precise technical drawing, illustration, and sketching. With a fine 0.35 mm line width and pigment-based ink, it delivers consistent, waterproof, and smudge-proof results. The metal-clad fiber tip ensures durability, while the snap-on cap protects the nib when not in use. Made in Japan, this pen is ideal for artists, architects, and designers who require archival-quality lines.

Advantages

Waterproof and lightfast ink ensures your work remains vibrant and legible over time. Smudge-proof when dry, allowing for clean layering and erasing. Acid-free and archival quality means your drawings will not yellow or deteriorate. The metal-clad tip provides a consistent line width and resists fraying.

Suitable for

• Technical drawing and drafting
• Illustration and sketching
• Outlining and detailed line work
• Architectural plans and diagrams

Key specifications

• Pen Type: Fineliner
• Ink Color: Black
• Line Width: 0.35 mm
• Nib Size Designation: 03
• Ink Type: Pigment-based
• Waterproof: Yes
• Lightfast: Yes
• Smudge-proof: Yes (when dry)
• Acid-Free: Yes
• Archival Quality: Yes
• Tip Material: Metal-clad fiber
• Barrel Material: Plastic
• Cap Type: Snap-on
• Country of Manufacture: Japan
• Quantity: 1 pen

Recommendations

For best results, use on smooth, high-quality paper. Store horizontally to ensure even ink flow. Replace cap tightly after use to prevent drying.