The Hatsukokoro Kurogane Blue #2 Petty 85mm is handcrafted in Tosa, Japan and reflects the region's long tradition of rugged, high-performance blades. Built with a hammer-forged san mai construction, it features a Blue #2 (Aogami #2) carbon steel core that delivers excellent edge retention, easy sharpening, and a crisp, responsive feel on the stones. The soft iron cladding adds toughness and balance, while the kurouchi finish provides a rustic look and a bit of added protection against corrosion.
Care Instructions: Blue #2 is a reactive carbon steel, so wash and dry the blade after each use to avoid rust. Avoid leaving acidic foods against the blade for any length of time, and apply a light coat of camellia oil for longer-term storage. Hand wash only.
A finish sharpening before first use is recommended to bring the factory edge up to its full potential.
Care Instructions: Blue #2 is a reactive carbon steel, so wash and dry the blade after each use to avoid rust. Avoid leaving acidic foods against the blade for any length of time, and apply a light coat of camellia oil for longer-term storage. Hand wash only.
A finish sharpening before first use is recommended to bring the factory edge up to its full potential.
- Maker: Hatsukokoro
- Location: Tosa, Japan
- Construction: San Mai, Hammer Forged
- Edge Steel: Blue #2
- Cladding: Soft Iron
- Finish: Kurouchi
- HRC: 62+
- Edge Grind: Even, Double Bevel, 50/50
- Weight: 2.8 oz (78 g)
- Blade Length: 85 mm
- Total Length: 214 mm
- Spine Thickness at Base: 3 mm
- Blade Height: 33 mm
- Handle: Octagonal Ebony
