Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Petty Utility Knife Ebony wood Handle
SKU:
Stainless-Clad Care
This knife is made with stainless cladding over a high-carbon core. The cladding resists rust, but the exposed core at the edge can still discolor or rust if not kept dry and properly maintained.
- 63-64 HRC
- Yes, except along the knife's edge
- Optional Magnolia Saya Cover
Blade Hardness
HRC (Rockwell Hardness) measures how hard the blade's steel is. Kitchen knife steel typically falls in the high-50s to mid-60s on this scale. Harder steel is built to hold a fine edge over long use, while softer steel favors flexibility and easy resharpening. The right HRC depends on the steel and design, not a single higher-is-better number.
Stain Resistant
This knife's cladding resists stains, though the exposed high-carbon edge can still discolor or rust without regular care.
Saya Cover
This knife does not automatically come with a saya cover included. Adding one with your order lets us shape it to this exact blade, a fit no aftermarket cover can match. A saya purchased separately later is cut to standard dimensions rather than this specific blade, so the fit is left to chance.
Full Specifications
Blade
- Knife Type
- Petty (Utility Knife)
- Primary Use
- Small detail work (paring, trimming, herbs)
- Blade Metal
- Blue Steel #2
- Grade
- Kurouchi
- Construction
- Clad (San Mai)
- Blade Hardness
- 63-64 HRC
- Blade Edge Type
- Double Bevel
- Blade Finish
- Kurouchi
- Stain Resistant
- Yes, except along the knife's edge
Handle
- Handle Material
- Ebony
- Handle Shape
- Octagonal
- Bolster Material
- Water Buffalo Horn (Color Varies)
- Tang Type
- Partial Tang
Product Details
This petty utility knife features a Kurouchi finish on stainless steel cladding, combining traditional style with modern durability.
Kurouchi, meaning "Black-Forged," gives the blade its natural, rustic look while protecting it from rust and wear.
The blade's core is Blue Steel #2, hardened to 63-64 Rockwell. This steel holds an edge longer, so you spend less time sharpening and more time prepping.
Its small size makes it ideal for precise tasks like peeling, trimming, and slicing small fruits and vegetables.
The knife has a comfortable octagonal Ebony wood handle, designed for both left- and right-handed users.
Overall, this petty utility knife offers a perfect balance of traditional craftsmanship, sharp performance, and easy maintenance for everyday kitchen use.
Recommended to purchase with Custom-Cut Saya Knife Cover Sheath
Knife Specs:
- HRC: 63-64
- Grade: Kurouchi Stainless Clad
- Stain Resistant: Yes, except along the knife's edge
- Blade Material: Blue Steel #2
- Edge Angle: Double Edged
- Handle Material: Ebony
- Bolster Material: Water Buffalo Horn (color varies)
- Handle Shape: Octagonal
- Saya Cover: Optional
Care & Origin
- Country of Origin
- Japan
- Care Instructions
- Hand wash only.
Dry immediately.
Avoid the dishwasher. - Sharpening Method
- Sharpen by hand using whetstones. Do not use honing rods.