Uni Kuru Toga Dive Mechanical Pencil Abyss Blue (0.5 mm)

The Kuru Toga Dive in Abyss Blue is Mitsubishi's most technically refined mechanical pencil: it combines the proven Kuru-Toga mechanism for automatic lead rotation with a world-first automatic lead advance system – no clicking, no interruption. The cap design in deep ocean blue with magnetic closure gives the pen a character that lies somewhere between precision instrument and collector's piece.

Features

• Kuru-Toga Engine – automatic lead rotation: The lead rotates slightly each time the tip is lifted from the paper. This prevents one-sided flattening of the graphite tip and ensures a consistently fine, clean line – even after many pages.
• Automatic lead advance – world-first feature: The lead advances automatically as you write, depending on writing pressure and lead hardness. No manual clicking needed – your writing flow remains completely uninterrupted.
• Adjustable advance in 5 levels: The automatic advance can be fine-tuned to your own writing pressure and the hardness of the lead you're using – less advance for light, controlled strokes, more for quick note-taking.
• Cap mechanism with automatic lead extension: When the cap is removed, the lead extends instantly to the set length. Cap off, ready to write – no extra steps.
• Magnetic cap: The cap clicks securely into place with a satisfying magnetic snap and reliably protects the graphite tip – in your case, bag or backpack.
• Ergonomic faceted barrel: The faceted shaft with rubber grip zone sits comfortably in your hand and reduces fatigue during long writing sessions. The grip diameter of approximately 10.7 mm is deliberately generous – for a relaxed, pressure-reducing grip.
• Integrated eraser: A replaceable eraser is built into the end for quick corrections whilst you work.
• Lead size 0.5 mm: Fine line for precise writing, technical sketches and clean notes – compatible with all standard 0.5 mm leads.

Use & Tips

• Extended writing sessions: If you write a lot – lectures, meetings, bullet journalling – you'll particularly benefit from the combination of automatic advance and rotation: the line stays consistent, your focus stays on the content.
• Fine-tune the advance: With softer leads (e.g. 2B), a lower advance setting is recommended since the graphite gives way more quickly. For harder leads (e.g. H or 2H), you can set the advance to a higher level.
• Sketching and technical drawing: The consistent point produced by the rotation mechanism also makes the Kuru Toga Dive interesting for line drawings where unevenly worn graphite would be distracting.
• Don't post the cap: The barrel is best balanced in your hand without the cap on – posting the cap noticeably lengthens the pencil and shifts the centre of gravity backwards.
• Loading leads: Load a maximum of two leads at once to prevent jamming in the mechanism – this is especially important for the sensitive advance unit.
• On the move: The magnetic cap keeps the graphite tip securely protected even during loose transport in your case – no accidental extension, no broken lead.

For Mechanical Pencil Enthusiasts

The Kuru Toga Dive marks a genuine breakthrough in mechanical pencil history: the automatic lead advance – realised worldwide for the first time in a mass-produced product – works sensor-controlled based on actual writing pressure, not on a fixed schedule. This fundamentally sets it apart from older advance concepts. Combined with the Kuru-Toga rotation, it creates a system that simultaneously addresses two of the most common problems with pencil writing – a dulling point and running out of graphite. The "Abyss Blue" finish is not a applied coating, but a deep, silky-matte blue that gives the barrel a calm, almost monochromatic character.

Technical Specifications