The all-around attributes of a santoku style blade are becoming more and more recognized by professional and home chefs around the world. Looking like a small Western chef knife or shorter gyuto, these versatile knives can really be your go-to blade for almost every daily cutting, slicing, and chopping task.
We have created the Kohetsu HAP40 Western line of knives for chefs of all kinds, be they amateur or professional. The blades are made from one of our very favorite steels, HAP40 powdered high speed steel. This amazing alloy has been developed by Hitachi Metals and is especially liked by many makers of fine kitchen utensils.
HAP40 is fine-grained enough to sharpen very well and can be hardened to 64-68 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 stones, if not quite as easily as traditional steels. Knives made from HAP40 keep their sharpness 3 to 5 times longer than traditional knives. The alloy is extremely tough, and so not as likely to chip along the edge as many other steels used in traditional knives.
The fine blade is ground with a symmetrical 50/50 bevel so it is perfect for both right- and left-handed users. The lovely satin finish on the stainless steel hagane is complemented by an attractive and comfortable mahogany handle. The HAP40 higane will eventually develop a nice patina which will further enhance the look of this handsome knife.
Kohetsu HAP-40; 180mm, Santoku, September 25, 2017
Posted By: Troy Cannon - verified customer
I found this to be an excellent knife. The fit and feel of the knife itself is very appealing to me. It has an excellent feel in the hand. Aesthetically, its pleasing to the eye. Out of the box it was extremely sharp. And I feel the same about the Saya as well. All in all, high quality products for a very affordable price.
I've had this knife for a year or so now. It is my go to knife through 50+ hour work weeks on the line. It's versatile enough to be my main knife. The edge retention is ridiculous. Constantly the sharpest knife on the line even when I haven't touched it on the stones for weeks. Fit and finish is good but not great. Handle looks great and feels good. Moderate overall weight for the size of the knife but it feels nimble in the hands. Takes a very nice edge if you take your time on the stones and as I said, the edge retention is RIDICULOUS when you get a nice edge on there.I LOVE THIS KNIFE!Seriously, it's a good value for the quality and I'm considering buying the HAP40 wa gyuto from kohestsu because of my love for this santoku. Only reason I'm moving on is because I want a bit more blade length and I want a wa style handled knife in addition to this monster.Wonderful knife.
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Mark is great at answering questions for knife nuts of all levels. His service is second to none. Really appreciate the time he puts into every email as well as the free forum he hosts.
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Very grateful such a dedicated and informative group of people provide excellent steel at competitive prices with superior customer service! A million thank yous!
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