N690 is an Austrian stainless steel made by Bohler-Uddeholm - one of the highest-purity stainless alloys available for kitchen knives, with extremely low impurity levels that produce a fine, consistent grain structure suited for thin grinds and keen edges. Takayuki builds the Grand Chef SP around this steel in Sakai, Japan, combining European metallurgy with Sakai grinding expertise. The result is a mono steel gyuto that is easy to sharpen, holds a good edge at HRC 60, and carries the credibility of one of the worlds most respected knife-making cities.
At 241mm blade length and 46mm height with a 2mm spine this 240mm gyuto is well-proportioned for professional all-purpose work. The blade design includes friction-reducing surface geometry to lower stiction through the cut - a practical detail on a knife used for extended prep sessions. The 70/30 double-bevel grind favors the right hand for slightly more aggressive slicing on the dominant side. POM handle - durable, water-resistant, and practical in a professional environment. Manufacturer: Aoki Hamono.
Care Instructions: N690 is a stainless steel - low maintenance and resistant to corrosion. Hand wash and dry after each use. Avoid the dishwasher, bones, and frozen foods. Sharpen on quality water stones - N690 responds well to careful sharpening and rewards good technique.
At 241mm blade length and 46mm height with a 2mm spine this 240mm gyuto is well-proportioned for professional all-purpose work. The blade design includes friction-reducing surface geometry to lower stiction through the cut - a practical detail on a knife used for extended prep sessions. The 70/30 double-bevel grind favors the right hand for slightly more aggressive slicing on the dominant side. POM handle - durable, water-resistant, and practical in a professional environment. Manufacturer: Aoki Hamono.
Care Instructions: N690 is a stainless steel - low maintenance and resistant to corrosion. Hand wash and dry after each use. Avoid the dishwasher, bones, and frozen foods. Sharpen on quality water stones - N690 responds well to careful sharpening and rewards good technique.
- Manufacturer: Aoki Hamono
- Brand: Takayuki Grand Chef
- Location: Sakai, Japan
- Construction: Mono Steel
- Steel: N690 Stainless (Bohler-Uddeholm)
- HRC: 60
- Edge: Double Bevel 70/30
- Handle: POM
- Weight: 7.5 oz (214g)
- Blade Length: 241mm
- Total Length: 370mm
- Spine Thickness at Base: 2mm
- Blade Height: 46mm











