Aoto Whetstone for Edge Pro

For Hapstone, TSProf and Edge Pro knife sharpeners (Edge Pro format)
$37.00 USD 📊 Grit Chart


Aoto Whetstones are used for fine sharpening on Hapstone or Edge Pro sharpeners. Aoto is silica natural stone with estimated grit approximately 2000-3000 JIS. Aoto stones are mounted on high-quality aluminum blanks.

Aoto (青砥) Whetstone is mined in Kameoka, Kyoto in Japan.

Historically Aoto was the most common whetstone in Japan to sharpen kitchen knives.

Aoto is preliminarily lapped and does not require lapping after purchase. Aoto should be used with water as a lubricant. Soak Aoto in the water for 2 minutes before use. During the sharpening, the slurry is released from the surface. It's not necessary to keep slurry on the stone surface.

Aoto stones may have slight natural imperfections and inclusions.

About Gritomatic

Gritomatic is not just an online shop. This private brand is a collection of high-quality, custom-made sharpening products. Gritomatic offers natural and synthetic stones, empty blanks and leather.

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