The Artisan Cutlery Io (ATZ-1872G) answers a question every EDC carrier asks sooner or later: how small can a premium knife go without giving up steel quality or lock strength? At 2.93 inches of S90V and 2.98 ounces on a full titanium frame lock, the Io is a genuine compact folder — not a scaled-down toy.
The Io pairs an S90V sheepsfoot blade with a titanium frame lock at just 2.98 ounces — compact carry without a steel downgrade.
Artisan Cutlery Io at a Glance
| Spec | Value |
|---|---|
| Blade Length | 2.93 in (74.5 mm) |
| Blade Thickness | 0.11 in (2.7 mm) |
| Blade Steel | S90V, HRC 60-62 |
| Blade Style | Sheepsfoot, flat grind, sand polish |
| Overall Length | 6.95 in (176.5 mm) |
| Closed Length | 4.0 in (102 mm) |
| Handle Material | Titanium |
| Lock Type | Frame lock |
| Pivot | Ceramic ball bearings |
| Weight | 84.4 g (2.98 oz) |
| Price | $199.99 |
The S90V Sheepsfoot Blade
The Io carries S90V, a powder metallurgy steel made by Crucible Industries with very high carbide volume and class-leading edge retention — Knife Steel Nerds covers its history and heat treatment in detail. It is not the toughest steel at a given edge angle, but for a compact urban knife that sees mostly cardboard, packaging, and food prep, its ability to hold an edge for weeks is exactly what you want. The sheepsfoot profile adds a straight cutting edge and a blunt tip — a shape that slices confidently and pokes nothing you didn't intend. The flat grind and sand polish keep the blade thin and easy to maintain.
Titanium Handle and Frame Lock
Both the handle and the clip are titanium, keeping the Io light without flex. The frame lock is machined from the handle itself, so there's no separate liner to wear out, and the ceramic ball bearing pivot gives the blade a smooth, controlled deployment. At this size, the lock interface is reassuringly solid — the Io feels locked up like a much larger knife.
Compact Ergonomics
Closed at exactly 4 inches and weighing under 3 ounces, the Io disappears in a front pocket, a shirt pocket, or the coin pocket of your jeans. The 2.93-inch blade covers most daily tasks — mail, packages, tags, cord — and the handle fills the hand well enough for secure control. For carriers who rotate a larger knife and want a light second option, the Io is nearly forgettable until the moment you need it.
Who Should Carry the Io
- Office and urban carriers who want a minimal pocket footprint.
- Anyone looking for a premium backup or second knife.
- Collectors building an S90V titanium rotation without duplicate sizes.
Verdict
The Io proves compact doesn't have to mean compromised. Premium steel, a real frame lock, ceramic bearings, and a sub-3-ounce carry weight make it one of the most pocket-friendly premium folders in the catalog. If your EDC philosophy is carry less, carry better, the Io is a strong candidate.
Want a compact folder that disappears in the pocket? Browse the Artisan Cutlery folding knife collection for knives built for reliable everyday carry.
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