Japanese Round Carving Chisel YOSHIHIRO Uchimaru Nomi - 9 mm

Code: 6177
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Traditional Japanese chisel with a slanted blade, type Tataki Nomi 叩き鑿 – striking chisel, shape Uchimaru Nomi 内丸鑿 – round, hollow chisel by the brand YOSHIHIRO. Laminated two-layer blade with high durability and sharpness. Body created using blacksmith welding method. Suitable for general carving use. Blade width 9 mm. Made in Japan.

Detailed information

Product detailed description


YOSHIHIRO - manufacturer of traditional Japanese tools and instruments used for precision craftsmanship. It produces both traditional and modernized carpentry tools.

Uchimaru Nomi 内丸鑿 – a "U"-shaped chisel used for carving round profiles and for other fine carving work. It is made in various radii and widths.

The blades of traditional Japanese chisels Nomi 鑿 – are made by joining two layers of steel. The body of the chisel is intentionally made of soft steel, which absorbs the impact when struck with a wooden mallet or metal hammer, reducing the chance of tool damage. However, the edge is made of extremely hard carbon steel, which during production becomes a layer with a hardness of 62 HRC for classic Nomi chisels, up to the hardness of 67 HRC for Japanese chisels with HSS blades, whereas classic European chisels only reach a hardness of 58 to 60 HRC.

The steel ring, a metal ring at the end of the handle of Japanese chisels, needs to be precisely fitted before the first use, to prevent the wooden end of the handle from splintering under the mallet's blows.


Features of the YOSHIHIRO chisel

✅ Traditional carving chisel
✅ Uchimaru Nomi 内丸鑿 shape
✅ For general carving use
✅ Handmade
✅ Blade made of white carbon steel
✅ White paper steel
✅ U-profile blade
✅ Handle made of red oak
✅ Made in Japan

There are two main types of Japanese chisels.

It is important to choose the right chisel, as there is a correct chisel for every task. Now, let's take a closer look at the most basic two types of Japanese chisels Nomi. Want to know more?


How to properly seat the steel ring?

The steel ring of Japanese chisels Nomi needs to be precisely seated before the first use, to prevent the wooden end of the handle from splintering under the blows of the mallet and also to protect your hand against a possible hit with the hammer. All you will need are a Japanese setting chisel, a steel hammer, and a solid workbench plate or a larger piece of iron. Want to know more?


Additional parameters

Category: Traditional Carving Chisels
Blade profile: U
Blade width: 9 mm
O ring: Yes
Length: 172 mm
Diameter: 22 mm
Weight: 75 g
Handmade: Yes
Material: Carbon steel
Number in package: 1
Made in: Japan