SG2 - also known as R2 - is a powdered metallurgical stainless steel that achieves 62 HRC through a grain structure too fine to reach with conventional steel making. The result is edge retention that outlasts standard stainless at comparable hardness, combined with full corrosion resistance and a sharpness potential that rewards cooks who develop their sharpening technique. Yu Kurosaki uses it at the core of the Senko Ei line, built in Echizen after over twenty years of production under top Japanese blacksmiths. San mai construction, stainless cladding, rosewood octagonal handle with blonde maple ferrule.
The sujihiki is Japan dedicated slicing knife - long, narrow, and built for single-stroke cuts through fish, roasts, and proteins without tearing or compression. At 247mm blade length and only 37mm height with a 2mm spine the Senko Ei sujihiki is a lean, precise slicing tool at 4.7 oz. SG2 at 62 HRC holds the fine slicing edge well through sustained professional protein work. The Senko surface treatment on the blade road gives it a distinctive visual identity that matches the rest of the line. Rosewood octagonal handle with blonde maple ferrule. Even 50/50 double-bevel grind works equally well for right- and left-handed cooks. Free US shipping over $100.
Care Instructions: SG2 is a fully stainless powdered steel - low maintenance and resistant to corrosion. Hand wash and dry after each use. Avoid the dishwasher. Use wood or rubber cutting boards. Avoid bones, frozen foods, and hard materials. Sharpen on quality water stones - SG2 at 62 HRC rewards a consistent angle and light pressure. Strop regularly between sharpenings. The convex grind benefits from a flat stone used with light, consistent pressure to maintain the geometry.
The sujihiki is Japan dedicated slicing knife - long, narrow, and built for single-stroke cuts through fish, roasts, and proteins without tearing or compression. At 247mm blade length and only 37mm height with a 2mm spine the Senko Ei sujihiki is a lean, precise slicing tool at 4.7 oz. SG2 at 62 HRC holds the fine slicing edge well through sustained professional protein work. The Senko surface treatment on the blade road gives it a distinctive visual identity that matches the rest of the line. Rosewood octagonal handle with blonde maple ferrule. Even 50/50 double-bevel grind works equally well for right- and left-handed cooks. Free US shipping over $100.
Care Instructions: SG2 is a fully stainless powdered steel - low maintenance and resistant to corrosion. Hand wash and dry after each use. Avoid the dishwasher. Use wood or rubber cutting boards. Avoid bones, frozen foods, and hard materials. Sharpen on quality water stones - SG2 at 62 HRC rewards a consistent angle and light pressure. Strop regularly between sharpenings. The convex grind benefits from a flat stone used with light, consistent pressure to maintain the geometry.
- Blacksmith: Yu Kurosaki
- Location: Echizen, Japan
- Construction: San Mai
- Edge Steel: SG2 (R2) Powdered Stainless Steel
- Cladding: Stainless
- HRC: 62
- Finish: Senko
- Edge Grind: Even 50/50 Double Bevel
- Handle: Octagonal Rosewood
- Ferrule: Blond Maple Wood
- Weight: 4.7 oz (134g)
- Blade Length: 247mm
- Total Length: 390mm
- Spine Thickness at Base: 2mm
- Blade Height: 37mm











