AS-9 series stones are made of aluminum oxide and were originally intended for the treatment of metal after electric spark machining (EDM)

Idahone Ceramic Stones are used for sharpening knives using Hapstone or Edge Pro knife sharpener

Fuji stones are made of aluminum oxide

Tsushima is natural stone with estimated grit approximately 5000 JIS

Consider buying Ruby 150

translucent arkansas whetstone for edge pro AS-9 series stones are madeDan's Whetstone Arkansas sharpening stones are used for sharpening knives on Hapstone and Edge Pro sharpeners. Arkansas stones are made of novaculite, a naturally abrasive material of high density. All Dan's stones have a thickness of 6 mm and are mounted on high quality aluminum blanks with laser engraving. Arkansas stones are mined in the Ouachita Mountains in the state of Arkansas in the United States. Arkansas stones consist of silica, but unlike