Kita-Boshi Otona No Enpitsu vs Kokuyo Enpitsu Sharp Review: The UK's Best Thick-Lead Mechanical Pencils 2026
Jun 29, 2026
Kita-Boshi Otona No Enpitsu vs Kokuyo Enpitsu Sharp Review: The UK's Best Thick-Lead Mechanical Pencils 2026
While 0.5mm mechanical pencils dominate the everyday writing market, a growing number of UK artists, writers, and stationery enthusiasts are discovering the pleasures of thick-lead mechanical pencils — instruments that combine the convenience of a mechanical pencil with the expressive, tactile qualities of a traditional wooden pencil. In this review, we compare two outstanding Japanese thick-lead mechanical pencils: the Kita-Boshi Otona No Enpitsu 2mm Mechanical Coloured Pencil, a beautifully crafted instrument for coloured pencil work, and the Kokuyo Enpitsu Sharp, a versatile multi-size mechanical pencil available in a 2-pack. Both are available from TTPEN UK.
Kita-Boshi Otona No Enpitsu — The Adult's Coloured Pencil, Reimagined
The Kita-Boshi Otona No Enpitsu 2mm Mechanical Coloured Pencil is a product with a name that tells you exactly what it is: “Otona No Enpitsu” means “Adult's Pencil” in Japanese, and this instrument is designed for grown-up creative work. At £14.00, it is a precision mechanical pencil that accepts 2mm coloured pencil leads, combining the control and convenience of a mechanical pencil with the expressive colour of a coloured pencil.
The 2mm Coloured Lead Advantage
The 2mm lead diameter is significantly thicker than standard mechanical pencil leads, providing a writing and drawing experience that is closer to a traditional coloured pencil than a conventional mechanical pencil. The thicker lead allows for broader strokes, richer colour deposit, and a more expressive, tactile drawing experience. It can also be sharpened to a fine point for detailed work, giving you the versatility of both broad and fine marks from a single instrument.
Coloured pencil leads in the 2mm format are available in a wide range of colours, allowing you to build a collection of leads that covers your creative needs. The mechanical pencil body protects the lead from breakage and provides a comfortable, controlled grip that is superior to holding a traditional coloured pencil.
Design and Build Quality
Kita-Boshi is a Japanese pencil manufacturer with a long heritage of quality, and the Otona No Enpitsu reflects that heritage in its build quality. The pencil has a clean, elegant design with a metal body that feels premium in the hand. The lead advance mechanism is smooth and precise, advancing the lead in controlled increments. The overall build quality is excellent — this is a pencil that will last for years with normal use.
The pencil comes with a built-in sharpener that allows you to sharpen the 2mm lead to a fine point for detailed work. This is a significant advantage over conventional mechanical pencils, which cannot be sharpened. The sharpener produces a clean, precise point that is ideal for detailed illustration and fine line work.
Who Is the Otona No Enpitsu For?
The Otona No Enpitsu is for artists, illustrators, and creative writers who want the expressive qualities of a coloured pencil with the control and convenience of a mechanical pencil. It's also an excellent gift for anyone who enjoys coloured pencil art and wants to upgrade their toolkit.
Price: £14.00 — Buy the Kita-Boshi Otona No Enpitsu at TTPEN UK
Kokuyo Enpitsu Sharp — The Mechanical Pencil That Writes Like a Wooden Pencil
The Kokuyo Enpitsu Sharp Mechanical Pencil — 0.3/0.5/0.7/0.9/1.3mm 2 Pack is a mechanical pencil with a genuinely innovative design philosophy. At £10.00 for a 2-pack, it is designed to replicate the writing experience of a traditional wooden pencil — the feel, the sound, and the tactile feedback — in a mechanical pencil format.
The Enpitsu Sharp Design
“Enpitsu” means “pencil” in Japanese, and the Enpitsu Sharp's design is explicitly inspired by the traditional wooden pencil. The hexagonal barrel mimics the shape of a classic pencil, and the overall proportions and weight distribution are calibrated to feel as close to a wooden pencil as possible. For writers and artists who love the feel of a traditional pencil but want the convenience of a mechanical pencil, the Enpitsu Sharp is a revelation.
The pencil is available in a range of lead sizes — 0.3mm, 0.5mm, 0.7mm, 0.9mm, and 1.3mm — covering the full spectrum from ultra-fine technical drawing to broad, expressive sketching. The 2-pack format allows you to have two different sizes at hand, or to keep a spare of your favourite size.
Performance and Feel
The Enpitsu Sharp's writing experience is genuinely distinctive. The hexagonal barrel provides a comfortable, familiar grip that feels natural to anyone who has used a traditional pencil. The lead advance mechanism is smooth and reliable, and the pencil writes with a consistency and smoothness that reflects Kokuyo's engineering quality.
The broader lead sizes — 0.9mm and 1.3mm in particular — provide a writing experience that is noticeably closer to a traditional pencil than conventional 0.5mm mechanical pencils. The thicker lead deposits more graphite per stroke, creating a darker, more expressive line that is ideal for sketching and expressive writing.
Who Is the Kokuyo Enpitsu Sharp For?
The Enpitsu Sharp is for writers and artists who love the feel of a traditional pencil but want the convenience of a mechanical pencil. It's also an excellent choice for those who want to experiment with different lead sizes without committing to multiple pencils. The 2-pack format makes it an excellent value for those who want to try two different sizes.
Price: £10.00 (2-pack) — Buy the Kokuyo Enpitsu Sharp at TTPEN UK
Side-by-Side Comparison
| Feature | Kita-Boshi Otona No Enpitsu | Kokuyo Enpitsu Sharp |
|---|---|---|
| Price | £14.00 | £10.00 (2-pack) |
| Lead Type | 2mm coloured pencil leads | Graphite, 0.3–1.3mm |
| Body Shape | Round metal | Hexagonal (pencil-inspired) |
| Built-in Sharpener | Yes | No |
| Best For | Coloured pencil artists, illustration | Writers who love pencil feel, sketchers |
Which Thick-Lead Mechanical Pencil Is Right for You?
The Kita-Boshi Otona No Enpitsu and Kokuyo Enpitsu Sharp both celebrate the pleasures of thick-lead pencil writing, but they do so in different ways. The Otona No Enpitsu is for artists who want to work with coloured pencil leads in a precision mechanical format — its 2mm coloured leads and built-in sharpener make it the ideal tool for detailed coloured pencil illustration.
The Kokuyo Enpitsu Sharp is for writers and sketchers who want the feel of a traditional wooden pencil in a mechanical format — its hexagonal barrel and range of lead sizes make it the most versatile and tactilely satisfying mechanical pencil available at this price point.
- Kita-Boshi Otona No Enpitsu 2mm Mechanical Coloured Pencil — £14.00
- Kokuyo Enpitsu Sharp Mechanical Pencil 2-Pack — £10.00
Both are available from TTPEN UK with fast UK delivery. Visit www.ttpen.co.uk to browse our full range of Japanese mechanical pencils.
Final Verdict
The Kita-Boshi Otona No Enpitsu and Kokuyo Enpitsu Sharp are two of the most distinctive and enjoyable mechanical pencils available in the UK market. Both celebrate the pleasures of thick-lead pencil writing in innovative ways, and both earn our highest recommendation. Visit TTPEN UK today.
