SKU: 82832105124

Goh Umanosuke Yoshihiro "Ao-Kasumi" Aogami #2 Mirror Finish 180mm Edo Usuba

Sale price$179.55 Regular price$199.50
Save 10%

Pay in installments of $49.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Goh Umanosuke Yoshihiro "Ao-Kasumi" Aogami #2 Mirror Finish 180mm Edo UsubaHand forged with Aogami #2 steel, heat treated to 61 62 HRC, this Edo usuba knife has a beautiful mirror finish and a kasumi polish on the grind. Often used by professional Japanese chefs to cut vegetables, usuba is one of the essential traditional Japanese knives that appeared during Edo era. This knife is hand forged by Igarashi Nori using awase construction, and polished to a high degree of fit and finish. Even the spine of the knife is mirror

Hand-forged with Aogami #2 steel, heat-treated to 61-62 HRC, this Edo usuba knife has a beautiful mirror finish and a kasumi polish on the grind. Often used by professional Japanese chefs to cut vegetables, usuba is one of the essential traditional Japanese knives that appeared during Edo era. This knife is hand-forged by Igarashi Nori using awase construction, and polished to a high degree of fit and finish. Even the spine of the knife is mirror polished. For right-handed use.

Spec:

  • Origin (Made in): Sakai, Osaka Prefecture, Japan
  • Brand: Goh Umanosuke Yoshihiro
  • Workshop: Yamawaki Hamono
  • Craftsman: Igarashi Nori 五十嵐 宣
  • Knife Type: Edo Usuba
  • Blade
    • Construction: Awase (Kasumi)
    • Grind: Single Bevel (Right-handed)
    • Hagane (Core Steel): Aogami#2 (Blue #2)
    • Jigane (Cladding): Carbon Steel
    • Hardness: 61-62 HRC
    • Hand-forged, hand-grinded, hand-sharpened
  • Blade Finishes:
    • Hon-Kasumi
    • Kyomen (Mirror)
  • Blade Length: 180mm (7.1")
  • Blade Height (at heel): 45mm
  • Spine Thickness
    • Above heel: 3.7mm
    • Middle: 3.3mm
  • Handle
    • Shape: Hachikaku (Octagonal)
    • Material: Japanese Magnolia (Ho Wood)
    • Kuchiwa: Black Buffalo Horn
    • Length: 134mm
  • Overall Length: 316mm
  • Weight: 187g (6.60oz)
  • Engraved Mark (Front): In Japanese Kanji "Goh Umanosuke Yoshihiro Made" (郷右馬允義弘造) ; “Blue Steel” (青鋼)
  • Mark (Back): In Japanese Kanji "Hand-forged" (本鍛練) ; “Certified” (認定)

About Goh Umanosuke Yoshihiro 郷右馬允義弘 / Yamawaki 山脇

Established in 1927 in Sakai Japan, Yamawaki Hamono produces knives under the "Yoshihiro" and "Goh Umanosuke Yoshihiro" brands, named after a famous swordsmith of the Kamakura period. Having mastered mizu-Honyaki process, the most challenging construction and treatment, Yamawaki Hamono combines Sakai's centuries-long history of knife making knowhow with newer technologies to create superior chef knives. The current owner of the Yamawaki Hamono - Mr. Ryoyo Yamawaki - is also a lecturer at several culinary schools. Having apprenticed under Sakai blacksmiths, the new generation craftsmen Igarashi Nori and Masaya Shimizu lead the Yamawaki workshop to create incredible knives that are well recognised among Sakai artisans.

Care:

Aogami #2 (Blue #2) steel is a premium Japanese high carbon steel for knife making. Despite some corrosion resistant quality (for a carbon steel), it is not stainless, therefore you should wipe your knife dry after each use. Patina will develop over time. Rust may develop if left in prolonged contact with water or acidic food. Use a rust eraser to clean if rusts develop. Avoid cutting into bones, frozen foods, hard fruit pits.

Cutting Surface:

Recommended cutting surface: wood, rubberized boards and high-end composites, and quality plastics such as polyethene make acceptable cutting surfaces, and will help protect and prolong knife’s edge. AVOID glass, metal, countertops, and other rigid, non-forgiving surfaces.

Sharpening:

We recommend sharpening all quality Japanese knives on whetstones, as we believe they yield the best results for your knives. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82832105124

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 8 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Robin J
Boise, US
★★★★★ 5
Terrific product
Color: A1-Red
I adopted a 2 year old cat - she’s not much for a lot of the toys I have purchased for her, until this one! At first she seemed very cautious with it - but still followed it around - once I slowed it down (a few different options) she loves to play with it! Great purchase very pleased with it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
S
Verified Purchase
Shayla Shepherd
Lowell, US
★★★★★ 5
Fun & Fast moving toy for my cats!
Color: A1-Red
This is such a fun little toy to keep my cats entertained. They were definitely weary about it for the first few days, but started to get used to it and play with it after a bit. I wish there was an even slower option because the slow option is still pretty fast, but at least it gets them up and moving. They will even play with the tail part when it's not turned on. Like others have said, it does collect hair pretty easily, but it's very easy to clean off. I don't have any dogs, but I could see smaller dogs loving this as well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
J
Verified Purchase
Jacqueline M. Miller
Cuba, US
★★★★★ 2
That it’s usable for more than one day
Color: A3-Pink, Color: A3-Pink
The toy itself is great and my puppy enjoyed it. My problem is that it didn’t come with a charging cord and none of mine fit. It never changed colors. Maybe if I had a charger cord it would be worth it, but right now it’s useless!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
T
Verified Purchase
Tinkerbell
Charlottesville, US
★★★★★ 3
Fun for Fido but flimsy
Color: A2-Blue
My 15 yearold mini Schnauzer, Sam, played with this for less than 1 hour and tore the rubber sleeve off it. I will say the toy itself is a genius idea. Sam was absolutely ensconced. I wish it were made sturdier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
S
Verified Purchase
sheila b.
Houston, US
★★★★★ 4
It does exactly what they say it does! Worth the money
Color: A1-Red
It arrived quickly. It’s a fun toy! It’s the right size for cats. Definitely worth the money. It is exactly as described. So far, the quality seems very good and it seems durable. The instructions are on the side of the box, which makes learning how to operate it easy. I love it that it’s red, because my kitty seems to be attracted to red. My kitty is very interested in it, yet isn’t quite sure what to think of it. I love that it changes directions on its own so that it doesn’t get stuck or lost under furniture, which is typical for a ball that cats play with. It seems to only go two, three or four feet in one direction and then it changes directions, which is both good and bad. I just wish it would go farther in one direction before changing directions so that my kitty could chase it farther, as we have plenty of space in our house for her to run. But that certainly could be a plus for other cats, enjoying not knowing where the ball is going to go next and really keep them on their toes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026

recommand products