Yu Kurosaki Kokusen AS Santoku
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Eligible US purchases include 180-day returns and a free prepaid return label.
Free US shipping over $99. Orders are normally fulfilled within 2 business days; UPS Ground transit is typically 1–5 business days. Custom work may add 1–2 business days.
Every order is fully insured. If a package is lost or damaged, contact us and we will handle the claim.
Overview
The Yu Kurosaki Kokusen AS Santoku is a fast, compact workhorse crafted in Echizen, Japan. Kurosaki-san pairs an edge of Aogami Super with stainless cladding and a Migaki tsuchime (hammered) finish that helps food release as you chop. The Santoku profile excels at the “three virtues”—slicing, dicing, and mincing—so it’s a natural daily driver for home cooks and pros who want laser-like performance with less maintenance than full carbon.
If you’ve admired Kurosaki’s signature grinds and silky cutting feel, Kokusen delivers it in a versatile package that glides through onions, powers through dense squash, and trims proteins with confidence. Stainless cladding keeps patina to a minimum, while the AS core brings long edge life and crisp feedback on the stones.
For best results, use a soft, knife-friendly board (we recommend the Hasegawa Pro Cutting Board), keep the edge fresh with light stropping (our Tokushu Leather Strop), and oil the blade occasionally with Tsubaki (camellia) oil. Want it screaming sharp out of the box? Add our professional sharpening service.
Common Questions
Q: Is this Santoku good for home cooks?
A: Absolutely. The 170mm-class blade is nimble on smaller boards, tall enough for knuckle clearance, and the stainless cladding makes upkeep easy. It’s a perfect “one-knife” setup for everyday prep.
Q: Will it rust?
A: The cladding is stainless, so only the exposed Aogami Super edge can react. Wipe dry during use and after washing, and apply a thin coat of tsubaki oil if storing for a while.
Q: How do I maintain the edge?
A: Touch up with a few light passes on our leather strop. When it needs a full refresh, either use water stones or select our Tokushu Knife sharpening service at checkout.
Specifications
- Brand/Blacksmith: Yu Kurosaki (Echizen, Japan)
- Core Steel: Aogami Super (Blue Super)
- Cladding Type: Stainless cladding with migaki tsuchime finish
- Blade Length: 170mm (Santoku)
- Overall Length:
- Spine Thickness (Heel): ~1.8mm (varies by piece)
- Spine Thickness (Mid): ~1.6mm (varies by piece)
- Weight: ~128g (varies by piece)
- Handle Material: Octagonal rosewood with black pakkawood ferrule
- Hardness (HRC): ~63–64
Shipping, returns and order protection
US shipping: Free on orders over $99. Orders are normally fulfilled within 2 business days, and UPS Ground transit is typically 1–5 business days after fulfillment. Custom handle installation or sharpening may add 1–2 business days.
Returns: Eligible purchases may be returned within 180 days with a free prepaid return label. Knives sharpened by Tokushu Knife or fitted with a custom handle remain eligible if they are otherwise new, unused, undamaged, and returned in their original packaging with all included components. The same refund terms apply.
Order protection: Every order is insured. If a package is lost or damaged, contact us at Tony@TokushuKnife.com and we will handle the claim.
Outside the US: Supported international orders from TokushuKnife.com typically ship via FedEx Delivered Duty Paid (DDP). Tokushu Knife pays all applicable import duties and taxes on the customer's behalf. Customers are not responsible for paying duties or taxes. Available destinations, shipping charges and delivery estimates are shown at checkout. Customers may also shop at TokushuKnife.eu for regional inventory and options.
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Steel, Construction and Care
Our catalog includes stainless, semi-stainless and carbon steels selected for edge performance and durability. Carbon steels may develop a patina, while stainless steels are designed to resist discoloration. Follow the care guidance on each product page, hand wash only and dry the knife promptly after use.
