Isamitsu Stainless Clad Aogami Super Kurouchi Tsuchime Gyuto 240mm - Blade Only
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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 Isamitsu Stainless Clad Aogami Super Kurouchi Tsuchime Gyuto 240mm is a hand-forged Japanese chef knife blade built for cooks who want exceptional carbon-steel performance and the freedom to choose their own handle. Made in Ibaraki, Japan, this blade combines a highly regarded Aogami Super (Blue Super) carbon-steel core with easier-care stainless cladding, a dark kurouchi finish, and expressive hand-hammered tsuchime texture.
At a measured 242mm along the cutting edge and 52.9mm tall at the heel, this gyuto offers generous board clearance and enough length for efficient prep, clean protein slicing, and large produce. The spine tapers from 2.6mm at the heel to 0.8mm near the tip, while the photographed choil reveals a thin, performance-focused grind behind the edge. At only 160g without a handle, the blade gives you flexibility to tune the finished balance with the wa handle of your choice.
Isamitsu Hamono works in Ibaraki with a lineage connected to training under Teruyasu Fujiwara. The workshop is especially sought after for high-performance carbon-steel heat treatment, keen edge formation, and handcrafted geometry. Every blade is individually forged, so subtle variations in hammer marks, kurouchi tone, profile, and measurements are part of its character.
Why Choose This Isamitsu Gyuto?
This is a compelling choice for an enthusiast or professional who wants long edge life, excellent sharpening response, and a tall, versatile 240mm profile. Stainless cladding protects most of the blade face, while the exposed Aogami Super edge develops a natural patina with use. The blade-only format is ideal for a custom build, allowing you to select the handle material, length, and weight that best suit your grip and balance preference.
Common Questions
Q: What does blade only mean?
A: No handle is installed. The tang is exposed so you or a professional installer can fit a compatible wa handle. The knife must not be used until a secure handle has been installed.
Q: Is this Isamitsu gyuto fully stainless?
A: No. The outer cladding is stainless, but the Aogami Super cutting edge is reactive carbon steel. Wash by hand, wipe it dry immediately, and never place it in a dishwasher. For longer storage or humid conditions, a light coat of pure tsubaki knife oil can help protect the exposed core.
Q: What is a 240mm gyuto best used for?
A: A 240mm gyuto is an all-purpose chef knife suited to vegetables, boneless meats, fish, herbs, and larger prep jobs. Its length improves slicing efficiency, while the pointed tip supports precision work. Avoid bones, frozen food, twisting cuts, and hard glass or ceramic cutting surfaces.
Q: How should I maintain the edge?
A: Use whetstones and light pressure appropriate for a hard Japanese edge. Between sharpenings, gentle stropping on a Tokushu Knife buffalo leather strop can help refine and realign the apex. A knife-friendly board such as a Hasegawa Pro cutting board will also help preserve sharpness.
Specifications
- Brand: Isamitsu Hamono
- Knife Type: Gyuto / Japanese Chef Knife
- Format: Blade only; handle not included
- Core Steel: Aogami Super (Blue Super) carbon steel
- Cladding: Soft stainless steel
- Finish: Kurouchi with tsuchime hammering
- Blade Construction: San-mai, double bevel
- Edge Length: 242mm
- Overall Length: 348mm
- Height at Heel: 52.9mm
- Spine Thickness at Heel: 2.6mm
- Spine Thickness at Mid-Blade: 2.2mm
- Spine Thickness Near Tip: 0.8mm
- Weight: 160g
- Hardness: Approximately 63–65 HRC
- Handle: Not included
- Hand Orientation: Ambidextrous
- Country of Origin: Japan
Because this knife is forged and finished by hand, the exact kurouchi pattern, hammer texture, profile, and measurements may vary slightly from blade to blade.
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.
