Masuda Yoshihide AO1 Custom Mango Damascus Gyuto 230mm
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Masuda Yoshihide AO1 Custom Mango Damascus Gyuto 230mm
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SPECIFICATIONS
Knife Style: Gyuto
Steel Type: Carbon Steel
Blade Material: Aogami Blue #1
Blade Finish: Kurouchi Damascus
Blade Hardness: 63HRC (+/-1)
Bevel: Double
Handle: Mango Wood with Pearl Epoxy
Blade Length: 230mm
Heel Height: 52mm
Spine Thickness: 3.70mm tapered to 1.50mm
Weight: 239g
Every now and then, a blade arrives that deserves something beyond a factory handle. This is one of those knives.
Built around a hand-forged 230mm Gyuto by Masuda Yoshihide in Sanjo, Japan, this one-of-one creation was custom assembled here at Kakushin with a completely unique Red Mango Wood and Pearl Epoxy handle. Once completed, this exact configuration became the only one in existence.
Masuda Hamono has been forging blades since the early Showa era, with three generations of the family carrying on the same tradition. Unlike many modern workshops where production is divided among multiple facilities, forging, heat treatment, grinding, and finishing all remain under the same roof—a level of craftsmanship that continues to define the Sanjo region.
The blade itself features a core of Aogami #1 carbon steel, renowned for its exceptional edge quality, crisp cutting feel, and straightforward sharpening. It is protected by beautifully layered Damascus cladding beneath a rugged Kurouchi finish, creating a blade that balances traditional character with refined craftsmanship.
For this build, we wanted something warmer and more elegant than our previous customs. The rich reddish tones of the Red Mango Wood are complemented by shimmering Pearl Epoxy, creating subtle depth that changes with the light. Instead of demanding attention, the handle quietly enhances the knife, giving it an unmistakably premium appearance while allowing the craftsmanship of the blade to remain the focal point.
Performance is equally impressive. The generous heel height provides excellent knuckle clearance, while the 3.7mm spine offers reassuring stiffness before tapering gracefully toward a precise, responsive tip. Rounded and polished spine and choil ensure the knife feels exceptionally comfortable during long prep sessions.
Like every custom build we assemble in-house, this knife was created only once. There are no extras hidden away, no future production planned, and no way to order another identical piece. It is a singular combination of Masuda's traditional forging and Kakushin's custom assembly—built for the collector or cook who appreciates owning something genuinely unique.
◻️ 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.