





Hatsukokoro Satoshi Nakagawa × Morihiro Blue #1 Damascus Gyuto 240mm with One-of-One Prisma Handle
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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 Hatsukokoro Satoshi Nakagawa × Morihiro Blue #1 Damascus Gyuto 240mm brings together two highly respected Sakai craftsmen: master blacksmith Satoshi Nakagawa and the sharpening expertise of Morihiro Hamono. Its Aogami #1 carbon-steel core is wrapped in reactive iron Damascus cladding, combining a crisp, keen edge with flowing layered character across the blade.
This is the standard-profile 240mm gyuto rather than the separate tall model. The versatile gyuto shape is suited to vegetables, proteins, herbs, and general prep, while the longer nominal 240mm format provides additional board coverage and slicing length.
One-of-one exact-photo knife: This knife is fitted with the individual Prisma custom wa handle shown in every product photograph. Natural and handmade visual details are unique. The buyer receives the exact knife pictured, and only one is available.
Performance and Craftsmanship
Blue #1 is valued for its fine grain, strong edge retention, and precise sharpening response. Nakagawa’s heat treatment is paired with Morihiro’s refined double-bevel geometry for confident food release, controlled cuts, and a smooth feel through ingredients. The Damascus cladding is intentionally subtle and reveals additional depth as the viewing angle and light change.
Common Questions
Q: Who made this Nakagawa Blue #1 Damascus gyuto?
A: Satoshi Nakagawa forged the blade in Sakai, Japan, and Morihiro Hamono performed the sharpening and grinding.
Q: Is this the tall 240mm model?
A: No. This listing is for the standard-profile Nakagawa Blue #1 Damascus 240mm gyuto shown in the photographs.
Q: Is Blue #1 Damascus stainless?
A: No. Both the Blue #1 core and iron Damascus cladding are reactive. A natural patina will develop with use; wash by hand and dry the knife immediately.
Q: Is the photographed handle the one I will receive?
A: Yes. This is a one-of-one Prisma-handled knife, and the exact photographed knife ships to the buyer.
Care and Maintenance
Never place this knife in a dishwasher or leave it wet. Avoid bones, frozen food, and twisting cuts. For longer storage, protect the reactive blade with a light coat of tsubaki oil. Maintain the edge between sharpenings with a Tokushu leather strop, or use our professional sharpening service. A knife-friendly surface such as a Hasegawa Pro cutting board will help protect the fine edge.
Specifications
- Brand: Hatsukokoro
- Blacksmith: Satoshi Nakagawa
- Sharpener: Morihiro Hamono
- Origin: Sakai, Japan
- Knife Type: Gyuto
- Nominal Blade Size: 240mm
- Profile: Standard-profile gyuto; not the tall model
- Core Steel: Aogami (Blue) #1 carbon steel
- Cladding: Reactive iron Damascus
- Construction: Hammer-forged san mai
- Hardness: Approximately 63–64 HRC
- Edge: Double bevel, approximately 50/50
- Handle: One-of-one Prisma custom wa handle shown
- Availability: One exact-photo knife
- Care: Fully reactive; hand wash and dry immediately
Because this is a handmade knife with a custom handle, dimensions and weight can vary. Unverified individual measurements are intentionally not stated.
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.



