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 130mm petty sits between the 120mm and 150mm - slightly more blade length for board tasks while remaining compact enough for in-hand work. At 2.4 oz and 29mm height with a 2mm spine it shares the same light, precise profile as the 120mm but with additional reach for trimming proteins and portioning smaller ingredients. SG2 at 62 HRC is non-reactive and holds a remarkably sharp edge through sustained professional use. Sandalwood octagonal handle with the characteristic Senko finish on the blade road. 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 130mm petty sits between the 120mm and 150mm - slightly more blade length for board tasks while remaining compact enough for in-hand work. At 2.4 oz and 29mm height with a 2mm spine it shares the same light, precise profile as the 120mm but with additional reach for trimming proteins and portioning smaller ingredients. SG2 at 62 HRC is non-reactive and holds a remarkably sharp edge through sustained professional use. Sandalwood octagonal handle with the characteristic Senko finish on the blade road. 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: Sandalwood Octagonal
- Weight: 2.4 oz (68g)
- Blade Length: 130mm
- Total Length: 255mm
- Spine Thickness at Base: 2mm
- Blade Height: 29mm
