Uni Jetstream Edge SXN-1003-28 Ballpoint Pen

Ultra-Fine Precision Engineered for Demanding Writers

The Uni Jetstream Edge SXN-1003-28 represents a historic breakthrough in writing technology as the world's first oil-based ballpoint pen to achieve an ultra-fine 0.28mm line width. Celebrated with the prestigious Japanese Stationery Grand Prize, this precision instrument combines Mitsubishi Pencil's legendary low-viscosity Jetstream hybrid ink with an architectural needle-conical tip. Whether executing micro-calligraphy, compact margin annotations, complex mathematical notation, or architectural drafting, the Jetstream Edge delivers crisp, smudge-resistant black lines with zero feathering and remarkably low writing resistance.

Key Features & Benefits

• World-First 0.28mm Ultra-Fine Tip: Engineered with a specialized "Point Tip" profile that narrows cleanly toward the ball, providing an unobstructed line of sight directly to your paper for pinpoint placement.
• Proprietary Jetstream Hybrid Oil Ink: Formulated with ultra-low viscosity pigments that dry instantly, resist water and light fading, and eliminate messy ink blobs.
• Low Center-of-Gravity Metal Grip: Crafted with a fluted metallic front section and a faceted hexagonal upper barrel, shifting weight forward to minimize finger fatigue during extended writing sessions.
• Asymmetric Wire Pocket Clip: Distinctive industrial wire clip offers a secure, stylish hold on notebooks, shirt pockets, and pen loops.
• Clean Retractable Knock Mechanism: Reliable push-button deployment protects the ultra-fine tip from accidental drops and dry-out.

Technical Specifications

• Brand: Uni (Mitsubishi Pencil Co., Ltd.)
• Model: SXN-1003-28 (Jetstream Edge Series)
• Tip Size: 0.28 mm ultra-fine point tip
• Ink Type: Low-viscosity oil-based Jetstream hybrid ink
• Ink Color: Black
• Dimensions: 143 mm length × 11 mm diameter
• Barrel Material: Aluminum alloy front grip, durable resin upper body
• Refill Compatibility: Uni SXR-203-28 refills

Frequently Asked Questions

Is the ink refillable in the Uni Jetstream Edge?

Yes, the pen is fully refillable using genuine Uni SXR-203-28 oil-based refills, available in black, red, and blue ink.

Does an ultra-fine 0.28mm ballpoint scratch or catch on paper?

Thanks to Uni's specialized point tip geometry and lubricated Jetstream hybrid ink formulation, the pen glides smoothly across smooth Japanese notebooks and standard office paper without snagging fibers.

Does the ink smudge with highlighters?

Uni Jetstream ink sets exceptionally fast into paper fibers, significantly reducing bleed-through and highlighter smudging compared to traditional gel or liquid rollerballs.

What writing color comes standard with each pen body?

All barrel colorways (Matte Black, Bright Silver White, Navy Blue, and Champagne Gold) come pre-loaded with a black 0.28mm Jetstream ink cartridge.