Tosa Tadayoshi Aogami 1 Tatsumi Gyuto 240mm
SPECIFICATIONS
Knife Style: Gyuto
Steel Type: Carbon Steel
Blade Material: Aogami Blue #1
Blade Finish: Kurouchi
Blade Hardness: 63HRC (+/-1)
Bevel: Double
Handle: Rubber from Parker Asahi (Beige Tatsumi Waves)
Blade Size: 240mm
Heel Height: 54mm
Spine Thickness: 3.30mm
Weight: 252g
Forged in the Tosa blacksmithing tradition of Kochi Prefecture, this blade embodies the raw, no-nonsense performance the region is known for. The kurouchi finish, left from the forging process, gives the knife its dark, rustic character while adding a natural layer of protection against oxidation. It’s a finish that speaks to function first, tradition always.
The core steel is Aogami #1 (Blue Steel)—a high-carbon steel enriched with tungsten and chromium, renowned for its outstanding edge retention and aggressive sharpness. Harder than most steels, it excels at precision work and long prep sessions, rewarding proper technique with a crisp, long-lasting edge that serious users appreciate.
This onewas assembled in-house and fitted with a Parker Asahi rubber handle (Beige Tatsumi Waves). Designed for professional kitchens, this handle offers a soft, tactile grip with a gentle cushioned feel, even during extended use. Unlike traditional wood, the rubber construction is extremely low maintenance, resistant to moisture and temperature changes, and easy to clean—making it ideal for both home cooks and demanding commercial environments.
The subtle Tatsumi wave pattern adds visual texture without compromising grip, while the handle’s ergonomic shaping provides excellent balance and control. Finished with careful hand sharpening, this custom Tosa blade is ready to move effortlessly from delicate vegetable work to dense proteins—combining traditional Japanese forging with modern, practical comfort.
◻️ Additional Information
Please note that colours, shading, and overall appearance may vary slightly between photos and the product you receive. Lighting, camera exposure, and reflections on materials like steel, epoxy, and wood can all create subtle differences.
Many of our items are handmade, which means each piece has its own character. Minor variations in pattern, texture, or finish are normal and part of the craft.
If you’d like to see additional photos or close-ups of any item, feel free to request them before or after placing your order—especially for one-of-a-kind pieces. We’re always happy to help you choose the perfect knife or handle.
◻️ Sharp Certified
Before our knives are shipped, each one undergoes a rigorous sharpness test to ensure they meet the highest standards of quality. Our BESS Certified sharpness scale will guarantee that your knives deliver the smoothest cuts.
This commitment to sharpness not only guarantees that you receive a product that's ready to perform at its best but also reflects our dedication to delivering excellence in every aspect of our field.
◻️ Shipping & Returns
Every product listed on our website is physically in stock at our shop and typically ships within 24 hours — giving us enough time for sharpening and proper packaging.
The only exceptions are custom knife assemblies or engraving, which may require 3-5 days before shipping. Everything is done in-house, so even with the extra steps, it’s still exceptionally fast.
Canadian orders can say goodbye to unexpected duties, additional customs fees and exchange rate fluctuations; all our prices are clear and upfront.
For international orders, we take care of providing the declarations documents on items from foreign countries.
We know choosing a knife online isn’t always easy. To make things stress-free, we offer a flexible 30-day Return Policy on regular-priced items. Take a look at our full policy for all the details!
◻️ Contact Us
We are at your service through email, social media, or even by phone, where you can have a direct conversation with one of our team members during our business hours.
Whether you require assistance with your existing product, have inquiries about a potential purchase, need more specific details, additional photos, or even a video to get a better sense of the product in a real human hand, we've got you covered.
Don't hesitate to get in touch.
