Experience SLD Semi-Stainless Steel in the Versatile Bunka Profile
The Tsunehisa SLD Washiji KOY Bunka 170mm is made in Japan from SLD semi-stainless steel - the Bunka's distinctive reverse-tanto tip and flat blade profile with carbon-like sharpness and a distinctive yaki (charred) oak handle.
The Specs
Steel: SLD semi-stainless tool steel - San Mai
Finish: Washiji (fine pear-skin) - reduces drag and food sticking
Blade length: 170mm | Flat blade profile with reverse-tanto tip
Edge grind: Even 50/50 double bevel
Handle: Yaki (charred/scorched) oak - KOY style
Note: Semi-stainless - more rust resistant than carbon but not fully stainless
Origin: Japan
The Bunka Profile. SLD Performance.
The Bunka is a traditional Japanese kitchen knife with a flat blade profile similar to the Nakiri, but with a distinctive reverse-tanto (angled) tip that makes it more versatile for precision work - scoring, detail cuts, and tasks where a flat-tipped Nakiri would be limiting. SLD semi-stainless delivers carbon-like sharpness and edge retention with significantly better rust resistance than pure carbon. The yaki oak handle is charred/scorched for a distinctive dark, textured appearance. Made in Japan by Tsunehisa.
Care & Maintenance
Hand wash and dry - more rust resistant than carbon but not fully stainless
Sharpen on Japanese water stones
Hone regularly with a ceramic or fine honing rod
Keep the oak handle dry - do not soak
Store on a magnetic strip or in a knife block to protect the edge
