Naniwa Gouken Arata #400 Grit (Thin Chosera) NA-0040

Sale price$108.00
  • Naniwa Gouken Arata #400 Grit (Thin Chosera) NA-0040
  • Western version of the famous Chosera stone
  • Premium level stone with exceptional feedback and fast action
  • Varied hardness across grits for optimal sharpening on harder or softer steels
  • High grit density and recommended quick soak before use
  • Made in Japan

The Naniwa Gouken Arata #400 Grit (Thin Chosera) NA-0040 is a premium-level stone that serves as the western version of the renowned Chosera stone. It is highly regarded for its exceptional feedback and fast action, providing professional-level sharpening results. The stone's varied hardness across different grits allows for optimal sharpening on both harder and softer steels.

Featuring a high grit density, the Naniwa Gouken Arata stone works best with a quick soak before use. With a size of 210 x 70 x 15mm, this thin Chosera stone offers precise sharpening capabilities. It is made in Japan to ensure the highest quality standards.

  • Level of Abrasion: Coarse Grit (#400)
Model NA-0040
Size 210 x 70 x 15mm
Material Magnesia bonded
Included Plastic storage case
Weight 1000g

We recommend soaking the Naniwa Arata stone for only 2-3 minutes before initial sharpening. After soaking, you can splash water on the surface to keep it wet. This stone works best with a quick soak. To develop a slurry for finer cutting, use a Nagura stone. Remember, the Nagura stone is not for flattening the whetstone, as this is a common misconception. After finishing sharpening, clean the stone and allow it to air dry naturally in a shaded position. Rapid drying can cause cracking, and leaving the stone in water can degrade its quality.


  • FREE Standard Delivery Over $200
  • FREE Customer Pick-Up (Syd Only)
  • Same day dispatch until 2PM AEST (Mon-Fri)

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Same day dispatch until 2PM AEST (Mon-Fri)

*Delivery estimates provided by Australia Post

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