The Hatsukokoro HAP40 Gyuto 210mm is a high-performance kitchen knife built for serious edge retention and long-term durability. We’ve long referred to HAP40 as “Voodoo Steel” because it holds a sharp edge noticeably longer than most steels while still being very manageable to sharpen. Heat treated to a high hardness, it delivers excellent cutting performance with a fine, precise edge and impressive wear resistance.
The blade features a clean kasumi finish with stainless cladding for easier maintenance, paired with a well-executed grind that balances thin cutting ability with durability. The one-piece octagonal ebony handle adds a refined look and solid feel in hand, making this an excellent choice for both home cooks and professionals seeking long-lasting performance.
Care Instructions: Hand wash and dry after use. Do not put in the dishwasher. Use a soft cutting board and avoid bones, frozen foods, and hard surfaces to prevent chipping. Although semi-stainless, dry promptly after use to maintain the edge and finish.
Brand: Hatsukokoro Location: Tosa, Japan Construction: San Mai Edge Steel: HAP40 Semi Stainless Steel Cladding: Stainless Steel Finish: Kasumi Edge Grind: Even HRC: 65-66 Weight: 5.4 oz (154 g) Edge Length: 213 mm Total Length: 356 mm Spine Thickness at Heel: 2 mm Blade Height: 47 mm Handle: Octagonal Ebony
The blade features a clean kasumi finish with stainless cladding for easier maintenance, paired with a well-executed grind that balances thin cutting ability with durability. The one-piece octagonal ebony handle adds a refined look and solid feel in hand, making this an excellent choice for both home cooks and professionals seeking long-lasting performance.
Care Instructions: Hand wash and dry after use. Do not put in the dishwasher. Use a soft cutting board and avoid bones, frozen foods, and hard surfaces to prevent chipping. Although semi-stainless, dry promptly after use to maintain the edge and finish.
Reviews
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Great all around knifePosted By: Kevin Hirakawa
34 people found this review helpful
The factory edge was pretty good. It could shave the hair on my arm. It handled a busy sushi station all day with only my honing rod to refresh the edge. Sharpened it on a 4K stone and the edge was perfect. It does not excel at any one thing but does everything well.
34 people found this review helpful
The factory edge was pretty good. It could shave the hair on my arm. It handled a busy sushi station all day with only my honing rod to refresh the edge. Sharpened it on a 4K stone and the edge was perfect. It does not excel at any one thing but does everything well.











