Miyagoshi Seito Ltd. in Kyoto manufactures and sells artificial grindstones by the vitrified manufacturing method.

Aoi series

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• Type	medium stone
  Abrasive material	Aluminum oxide abrasive Al2O3
  Binder	High-temperature moiten ceramic bond
  Production method	Pores ceramic method
  Color tone	Cobalt blue
  Grain size	#400 　central particle size 　　approx.30μ #800 　 central particle size 　　approx.14μ #1200　central particle size 　　approx.9.5μ #2000　central particle size 　　approx.6.7μ
  Size	#400 approx.205x75x25mm #800 approx.205x65x38mm #1200 approx.205x65x38mm #2000 approx.205x65x38mm
  Price	#400 　¥4680（＋tax） #800 　 ¥4920（＋tax） #1200　¥5040（＋tax） #2000　¥6960（＋tax）
  Application	For general knives and high hardness steel knives

We release a new line on our web site.
It’s Aoi series, which the same type stones of Aoi 葵 (#1200 grit).
Adding cobalt to material and baked at high temperature, they have high toughness.
It make these stones enhance its performance.
They have good balance between free abrasive grain and holding force of stone’s surface.
This type stones are easy to use for all users (from beginner to professional )
We add #400, #800, #2000 grit stones to Aoi series.
We focus the medium stone which is used stone in most important process of sharpening.

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