This Kohetsu HAP40 Wa Gyuto 210mm is fitted with a beautiful custom handle made with 4,000 year old bog oak that's stabilized. The spacer is made with maple wood and the ferrule is blackwood.
HAP40 is fine-grained enough to sharpen very well and rates 65 on the Rockwell Hardness Test (HRC)even harder than the traditional carbon steels used for knives. Contrary to other HSS steels, it can be relatively easily sharpened on normal waterstones, if not quite as easily as traditional steels. Knives from this steel keep their sharpness 3 to 5 times longer than traditional knives. HAP40 is extremely tough, and so not as likely to chip along the edge as the steel used in traditional knives.
Please note, the knife sharpener intentionally thins the edges of these knives to make them perform better, especially on the tip area. Often times you will see a hazy/cloudy scratch pattern as a result. This is not a defect. Please look at the 4th photo on this page to see it.
Bladesmith: Mr Tsukahara
Location: Seki City Japan
Handle: Custom Octagonal
Weight: 158g / 5.5 ounces
Blade Length: 212 mm
Thickness at Heel: 2.1 mm
Blade Height: 45.3 mm
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