Kohetsu HAP40 Kiritsuke 240mm. We nicknamed HAP40 steel "voodoo steel" because it holds an edge seemingly forever. Manufactured by Hitachi, the steel can be hardened up to between 64 and 68 Rockwell. We chose 65-66 HRC. It is a fine grained steel that takes a very sharp edge. But of greater note is its almost supernatural ability to hold that edge. No other steel on the CKTG site gets even close to HAP40 in terms of edge retention. We have just started working with this remarkable steel and so far have been blown away by its strengths and abilities.
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.
If you seek a blade to keep on ticking after a shift-long licking then this outstanding kitchen knife just might be the answer to your needs. Finished with a mahogany Western style handle and stainless bolster, it looks good too! A CKTG exclusive.
Location: Seki, Japan
Construction: Laser Cut, San Mai
Weight: 8 ounces
Blade Length: 240 mm
Thickness at Heel: 2.5 mm
Blade Height: 49 mm
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