Mitsubishi makes three wood-cased graphite pencils that look, on paper, like the same product at three prices. They are not. Here is exactly what you buy as you climb the range — and where the extra money stops paying you back.
Mitsubishi Pencil — the Japanese maker behind the uni brand, and no relation to the carmaker — has been near the top of every "best pencil in the world" argument for sixty years. The confusion is that it fields three graphite tiers with almost identical maroon liveries and overlapping names: the flagship Hi-uni, the original uni, and the workhorse 9800. There is also a quieter fourth, uni-star, sold as the student-budget option.
We hold every grade of all four, so this isn't a guess from one HB. Below is what actually changes as you step up, which tier is the genuine sweet spot, and who should ignore the premium entirely.
If you've landed here while shopping for the best Japanese pencils generally, the short answer is that the Hi-uni is the one most people end up comparing everything else against — its only serious domestic rival is Tombow's Mono 100. But the more useful question is rarely "which is best"; it's "how far up the Mitsubishi range do I actually need to go". That's what the rest of this answers.
The short version
Hi-uni is the smoothest, most consistent pencil Mitsubishi makes and the only one offered across the full 22-grade range. uni gives you most of that refinement for less. The 9800 is a brilliant general-writing pencil that costs a fraction of the Hi-uni and, for handwriting and notes, gives little away. For most people the 9800 is the value pick and uni is the sweet spot; Hi-uni earns its premium only if you draw seriously across a wide tonal range.
In a hurry? Best all-rounder: the uni →. Cheapest good pencil for writing: the 9800 →. Finest for drawing: the Hi-uni →.
Hi-uni vs Uni vs 9800 — what's the real difference?
All three are made from the same family of graphite-and-clay leads in Japan, and all three are good. The differences are real but they are differences of degree, not kind.
| Tier | Introduced | Grade range | Barrel | Best for | Relative price |
|---|---|---|---|---|---|
| Hi-uni | 1966 | 10H–10B (22 grades) | Deep maroon, gloss, gold + black | Drawing, shading, tonal work | £££ |
| uni | 1958 | 9H–6B (17 grades, JIS) | Maroon, gold | Drafting, drawing, premium writing | ££ |
| 9800 | 1946 | 2H–2B (six everyday grades) | Green, gold | Everyday writing, notes, students | £ |
| uni-star | — | 2H–4B (seven grades) | Dark red, simpler finish | School, bulk, value | £ |
Grade ranges reflect what we stock: Hi-uni runs the full 10H–10B (22 grades), uni 9H–6B (17), the 9800 the six everyday grades 2H to 2B, and uni-star 2H to 4B (7). Mitsubishi sells a wider sketching version of the 9800 in some markets, but the green writing pencil most people mean by "9800" is the office range above. Availability shifts, so the live line pages carry the current grades.
What you're actually paying for
The step up the range buys three things, in this order of how much you'll notice them:
- Laydown smoothness. Hi-uni's lead is built from a tightly graded blend of graphite particle sizes, which is the whole point of the line. On paper that means a glassy, even glide with very little drag. uni is close behind. The 9800 is smooth for the money, but put it next to a Hi-uni of the same grade and you can feel it's a notch grittier.
- Consistency and point retention. The premium leads break less, sharpen to a cleaner point, and vary less from pencil to pencil within a box. For long sessions this matters more than the headline darkness.
- Fit and finish. The lacquer, the cap, the printing, the way it feels in the hand. Real, but cosmetic.
What's missing from that list matters too: there's no dramatic jump in darkness at the same grade. An HB is an HB across all three, close enough that a casual writer would struggle to pick the Hi-uni out blind. The premium shows in how the graphite goes down, not in a wildly different mark.
See the Hi-uni range → See the 9800 HB →
Is Hi-uni worth the extra over the 9800?
For drawing, yes. For writing, mostly no.
The honest test is what you do with a pencil. If you shade, build tone, and work across the range from crisp 2H linework to the deep, velvety darks of an 8B or 10B, the Hi-uni rewards you on every stroke: the laydown is more even, the darks are richer and easier to control, and you actually need grades the 9800 simply doesn't offer. This is where the price gap (Hi-uni typically costs several times a 9800) buys you something you'll use.
If you write — notes, lists, exam scripts, the daily grind of getting words onto paper in HB or B — the 9800 gives you perhaps 85–90% of the Hi-uni writing experience for a small fraction of the money. It sharpens well, holds a point, and has been a Japanese office and classroom standard since 1946 for good reason. Buying Hi-uni purely to write with is a lovely indulgence, not a sensible upgrade.
The "85–90%" is our shorthand from side-by-side writing, not a measured figure — there's no laboratory scale for "feels nicer". Treat it as informed opinion.
Which is the best value of the three?
It depends on whether you weigh value by absolute cost or by quality-per-pound.
If we had to hand one box to a stranger and bet they'd be happy, it would be the uni — the least compromised choice for the most people.
Do the three tiers grade the same?
They use the same scale, but they are not perfectly interchangeable.
All Mitsubishi pencils follow the standard system — H for hardness, B for blackness, HB and F in the middle — and the brand keeps its grades reasonably honest line to line. So a uni 2B and a Hi-uni 2B are aiming at the same target. In practice, though, the premium leads tend to read very slightly darker and noticeably smoother at the same nominal grade, because the finer particle blend lays down more graphite for the same nominal hardness.
Two practical warnings:
- Japanese HB runs dark. Mitsubishi's HB is closer to what some European brands label B. If you're used to a Western HB, all three of these will feel a touch softer and darker than expected — that's the house style, not a fault.
- Don't cross-grade between brands. A Mitsubishi HB and another maker's HB can differ more than a Hi-uni and a 9800 do. Grade letters are a guide, not a guarantee — judge by the mark, not the label.
Which should a student buy?
Match the pencil to the work, not the budget anxiety.
Where this leaves you
Buy the 9800 if you mostly write and want the best pencil for the least money. Buy the uni if you want a premium pencil you'll keep reaching for without paying flagship prices. Buy the Hi-uni if you draw seriously and want the finest graphite Mitsubishi makes, across the widest range. And buy uni-star if you simply need good Japanese pencils in quantity.
Hi-uni → uni → 9800 → uni-star →
Whatever pencils you choose, these are the accessories we reach for daily (Amazon UK; as an Amazon Associate we earn from qualifying purchases):
- KUM long-point sharpener → — a two-step sharpener for a long, artist's point
- Faber-Castell kneaded eraser → — lifts graphite for highlights without tearing paper
- Staedtler Mars Plastic eraser → — clean, precise erasing for crisp edges
- Blending stumps & tortillons → — for smooth tonal blends and soft gradients
FAQ
- Is Hi-uni the same as uni?
- No. uni (1958) was Mitsubishi's original high-quality pencil; Hi-uni (1966) is the later flagship, with finer, more consistent graphite and the full 10H–10B range. Hi-uni is the step up from uni, not a rename of it.
- Why is the 9800 so much cheaper if it's also Mitsubishi?
- It's an everyday writing pencil from 1946, made in huge volumes with a simpler lead and finish. It's genuinely good for writing — you're paying less because it isn't chasing the tonal range and laydown polish of the premium lines, not because it's poorly made.
- Which is best for sketching and shading?
- Hi-uni, comfortably. It offers the soft grades (up to 10B) and the smooth, even laydown that tonal drawing needs. uni is a solid cheaper alternative if you stay within 6B.
- Is a Mitsubishi HB darker than a normal HB?
- Slightly, yes. Japanese HB tends to sit darker and softer than typical European HB — closer to a Western B. All three tiers share this house character.
- Do I need the full 22-grade Hi-uni set?
- Almost certainly not. Most people work happily with a handful of grades — something like 2H, HB, 2B, 4B and 6B. Buy the grades you use rather than a full set you won't.
House of Graphite catalogues every grade across the major pencil makers, which is how we can compare these tiers directly rather than from a single sample. We're an Amazon Associate (tag bl-house-of-graphite-21) and earn from qualifying purchases made through our links — it never changes the price you pay, or what we say. Prices and exact grade availability change; the live product pages carry current pricing.