Uni PIN Fine Line Drawing Pen – Waterproof Technical Fineliner

Professional precision and smooth pigment ink for artists, illustrators, and designers.

The Uni PIN Fine Line Drawing Pen delivers crisp, consistent lines and exceptional ink performance for sketching, illustration, and technical work. Popular with professional and hobby artists alike, this fineliner features Uni’s renowned Super Ink™ – a waterproof, fade-resistant, and tamper-proof pigment formula. Perfect for use alongside watercolours and other wet media, it won’t bleed or smudge once dry, allowing for clean, layered results.

Key Features

• Waterproof, fade-resistant, and tamper-proof pigment ink
• Steel-supported polyacetal nib ensures strength and control
• Consistent, ultra-smooth ink flow for technical or artistic use
• Cap window displays tip size and ink colour for easy identification
• Available in 10 tip sizes for varied line precision
• Ideal for stencils, sketches, and detailed technical drawing
• Features Uni Super Ink™ for long-lasting, archival-quality results

Specifications

• Ink Colour: Black
• Tip Range: 0.03mm – 0.8mm and brush tip options
• Ink Type: Pigment-based Uni Super Ink™ (waterproof and fade-resistant)

Applications or FAQs

Can I use this pen with watercolours? Yes – once dry, the Uni Super Ink™ will not smudge or bleed under washes of watercolour or other wet media.

Who is it best suited for? Artists, illustrators, designers, and students needing reliable, archival-quality ink with precise line control.

Whether used for technical drafting, fine illustration, or expressive mixed media art, the Uni PIN Fineliner delivers dependable performance, clean lines, and waterproof precision every time.