The Complete Guide to Japanese Kitchen Knives
Japanese kitchen knives are widely considered the finest cutting tools in the world — and for good reason. They combine centuries of forging tradition with steel science that delivers an edge most Western knives simply can't match. This guide walks you through the main blade types, the steel that makes them special, and how to choose the right one.
Why Japanese knives are different
Japanese blades are typically harder, thinner, and sharper than their Western counterparts. A harder steel takes a finer, more acute edge and keeps it longer. The result is less crushing and more clean slicing — which means better texture, less oxidation on your ingredients, and more control.
The essential Japanese knife types
- Santoku — "Three virtues." A versatile all-rounder for meat, fish, and vegetables. Flatter blade, sheep's-foot tip, 150–180mm. The perfect first Japanese knife.
- Gyuto — The Japanese take on the Western chef's knife. Longer, slightly curved, an everyday workhorse.
- Nakiri — A rectangular, straight-edged vegetable specialist. Born in 17th-century Japan during the Edo era, when a diet centered on fish, rice, and vegetables created demand for a dedicated vegetable knife. Designed for clean, straight up-and-down chopping.
- Kiritsuke — An elegant, multi-purpose blade traditionally reserved for head chefs, blending the strengths of a slicer and a vegetable knife.
- Paring knife — Small and precise, for peeling, trimming, and detailed work.
The secret is the steel: AUS-10
Most premium Japanese knives — including every Oni Craft blade — are forged from AUS-10 steel, a high-carbon stainless steel developed by Japan's Aichi Steel. It contains roughly 1% carbon (0.95–1.10%) and around 14% chromium (13–14.5%), plus molybdenum and vanadium for toughness and a fine grain. Hardened to 58–61 HRC, it delivers exceptional edge retention while resisting rust and corrosion — and it's a touch easier to sharpen than VG-10. In short: razor sharpness that lasts. Read more about AUS-10 steel here.
How to choose your first Japanese knife
- Home cook? Start with a santoku — versatile and forgiving.
- Love vegetables? Add a nakiri.
- Want one knife for everything? A chef's knife won't let you down.
Handmade, and guaranteed for life
At Oni Craft, every knife is handmade from AUS-10 Japanese steel and backed by a lifetime guarantee. We believe a great knife should be a once-in-a-lifetime purchase.
👉 Browse our full collection of handmade Japanese kitchen knives.