Moritaka AS Petty 130mm

Moritaka Hamono has been forging blades in Yatsushiro, Kumamoto Prefecture, since the 13th century - over 700 years of continuous production in the same location. CKTG is the exclusive US distributor of the Moritaka Supreme line, a relationship built on the Mark relationship with the family and their work across multiple visits. The Supreme line uses Aogami Super carbon steel at the core, hardened to 64-65 HRC, with soft iron cladding, kurouchi (black as-forged) finish, and a stainless tang welded to the blade before handle installation to protect the joint. A 50/50 convex grind runs throughout the line.

With a blade length of 130mm and a weight of right around 2 oz, the Moritaka petty is the most compact knife in the Supreme lineup - a precise in-hand tool for peeling, trimming, segmenting, and fine board work where a longer blade is excessive. With a blade height under 30mm, it is narrow and nimble without feeling insubstantial. The kurouchi finish on the cladding develops further patina with use, building a layer of protection on the soft iron over time. The convex 50/50 grind gives it excellent food release and cutting efficiency for a blade of this size.

What Customers Are Saying: Fifteen reviews and the themes are consistent. Reviewers praise the balance, sharpness out of the box, and the way it develops character with regular use. A professional cook who uses it daily reports holding an edge through extended kitchen work with only gentle stropping and occasional touches on a 6000-grit stone. Another calls it extraordinary craftsmanship, noting CKTG shipped it so fast it arrived before the charge cleared his debit card. A home cook who has used it as a paring and utility knife for five months describes a bite that never goes away with regular honing - highly recommended for serious cooks who keep carbon steel dry. Multiple reviewers single out the kurouchi finish as beautiful, and the overall balance as exceptional for a knife this size. The out-of-the-box edge is polished and capable of push-cutting paper; a quick stone touch-up adds tooth for tomato work.

Care Instructions: Aogami Super is a reactive carbon steel, and the soft iron cladding is also reactive - both the edge and the blade road will patina naturally with use. The kurouchi finish provides initial protection, and the patina that develops adds further protection over time. Wipe and dry the blade immediately after every use. Avoid leaving acidic foods on the blade. Hand wash only, and never put in a dishwasher. Apply camellia oil for long-term storage. Aogami Super at 64-65 HRC rewards careful sharpening technique and responds beautifully to stropping.

Each knife is made by hand so measurements may vary.

• Maker: Moritaka Hamono
• Location: Yatsushiro, Kumamoto Prefecture, Japan
• Construction: San Mai, Hammer Forged
• Edge Steel: Aogami Super
• Cladding: Soft Iron
• HRC: 64-65
• Finish: Kurouchi (Black As-Forged)
• Edge Grind: Even, 50/50 Convex, Double Bevel
• Stainless Steel Welded Tang
• Weight: 2.2 oz (62 g)
• Blade Length: 130 mm
• Total Length: 255 mm
• Spine Thickness at Base: 2 mm
• Blade Height: 28 mm