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Home / Liner Pens / Fingertip Assassin Detail Brush, Liner Pen, Ultimate Fine Flat Tip for Panel Lining, Water-Based Paint Coating and Coloring Tool for Gundam Models

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Liner Pens
Origin -
Tip Type Ultra-Fine Flat Tip
Ideal For Panel Lining & Detailing
Compatible Media Water-Based Paints
Target Models Gundam & Scale Models
Handle Design Ergonomic Fingertip Grip
Brush Material Synthetic Nylon Bristles
Ink Flow Consistent & Controlled
Cleaning Method Water Soluble
Package Contents 1x Detail Brush Pen
Country of Origin Japan

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 3/5

Good but dries out fast if uncapped

The performance is great when fresh, but you have to be very careful to cap it immediately. I left it open for a minute and the tip got stiff. Otherwise, good quality.

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for Gundam panel lining

This brush is a game changer for my HG and MG kits. The flat tip allows for incredibly precise lines without bleeding. Highly recommended for anyone serious about detailing.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Best water-based liner I've used

I've tried several brands, but this one holds the most paint while maintaining a sharp edge. Cleaning it with just water is a huge plus after long sessions.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Made my first build look professional

As a beginner, I was scared to do panel lining. This pen made it so easy. The ink flows smoothly and mistakes wipe away easily with a damp cloth before drying.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent for tiny details

Not just for Gundams! I use this for painting eyes on miniature figures. The flat tip shape helps create clean strokes that round brushes just can't match.

A

Anonymous

Mar 05, 2026

Rating: 4/5

Great control, slight learning curve

The fine tip offers amazing control once you get the hang of the pressure needed. It took me a few tries to stop the paint from pooling, but the results are worth it.

5 FAQ

Q: Does this work well on dark colored plastic parts?

A: Yes, but since it uses water-based paint, you may need to apply a white undercoat or use a specific dark-colored water-based liner paint for visibility on black parts.

Q: Is the tip replaceable if it gets damaged?

A: No, the tip is integrated into the pen body. However, with proper care and cleaning, the synthetic bristles are designed to last for hundreds of hours of use.

Q: Can this be used with acrylic enamel paints?

A: This brush is specifically optimized for water-based paints. While you can use it with acrylics, ensure you clean it immediately with water to prevent bristle damage.

Q: How do I store this when not in use?

A: Always store the pen horizontally or with the tip facing down in a cup if you plan to use it again soon. For long-term storage, ensure the cap is sealed tightly and store upright.

Q: What is the exact width of the flat tip?

A: The flat tip measures approximately 0.2mm in width, making it ideal for standard 1/144 and 1/100 scale panel lines.

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