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NANIWA Clean SERA Antibacterial Sharpening Stone 4000 Grit

Type: Without base

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Product Information

  • Brand:NANIWA
  • Model:IS-0210(Without base) / IS-0211(With base)
  • Material:Aluminum Oxide
  • Product type:Sharpening Stone
  • Country of origin:Japan
  • Without base:Dimensions (approx): 210 x 70 x H20 mm, Grit: 4000 grit, Item weight (approx): 630 g, Shipping weight (approx): 730 g
  • With base:Dimensions (approx): 210 x 70 x H20 mm, Grit: 4000 grit, Item weight (approx): 690 g, Shipping weight (approx): 790 g

Key Features

  • The first antibacterial sharpening stone, conformed to JIS antibacterial test by the SIAA marks.
  • The #4000 grit is perfect for finishing the blade extra sharp.

Use & Care

  • Soak the stone to saturate it prior to use.
  • Splash some water on the stone as you sharpen the blades.
  • Make sure to use the stone on the flat, stable and non-slippery surface.
  • Wash it well with water after use. Air dry and store it away from the direct sunlight.
  • In case a part of the stone is chipped after a fall, for example, make sure to smooth out the chipped part so that the blade won't be damaged when sharpening with it.


Since its establishment, Naniwa Abrasive Mfg. Co.,Ltd. has been dedicated to the development and manufacture of grinding and polishing technology and tools. They have an integrated system from production to sales of a wide variety of grindstone or diamond tools.