Kaeru means Frog in Japanese. It is the JNS house knife series — i made it with professional use in mind but designed to be easy to live with.
The blade is made from SLD steel. That is a high carbon stainless core (1.5% carbon, 60–62 HRC) wrapped in soft stainless cladding on both sides — a classic Sanmai construction. You get the sharpness and edge retention close to a full carbon knife, but with no rust worries. Works perfectly in a professional kitchen or humid environment.
For anyone coming from western knives, the hardness jump is real — 60–62 HRC versus the typical 56–58 of western knives. But the stainless cladding makes it forgiving. Much more chip resistant than a full carbon knife and almost zero maintenance compared to blue or white steel.
The grind is a workhorse — made to cut a lot of food without fussing. The finish has a clean parallel lines, which makes it easy to wipe down or touch up the finish yourself.
Handle is traditional D-shape Ho wood with a Buffalo horn. Made in Sanjo, Niigata — same town as the blade.
If you are looking for your first Japanese kitchen knife and want something hard, sharp, and easy to maintain — Kaeru is the right choice.
Steel: Hitachi SLD clad with softer stainless
Handle: Ho wood D shape with buffalo horn
Approx.. measurements:
Handle Length- 110mm
Handle Width- 20mm
Hell to Tip Length- 90mm
Blade Height at Heel- 25mm
Width of Spine at Handle- 1,9mm
Width of Spine at Middle- 1,8mm
Width of Spine 1cm from the tip- 1mm
weight: 40g
All knives JNS cary is handmade and made one by one, so they can vary in size and thickness. Unevenness in finish can occur.

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