Atoma Diamond 4" x 1"


Grit: 140


Abrasive Synthetic monocrystalline diamonds
Available Grits 📊 Grit Chart
140 JIS XC
400 JIS M
600 JIS M
1200 JIS F
Bonding Electroplated coating
Compatibility Cannot be used with magnet-based Hapstone sharpeners
Country of Origin Japan
Extra Material Mounted on aluminum blank
Form Factor KME
glgc atoma
Lubricant Water
Thickness of Abrasive coating
Total Thickness 6 mm
Working Surface 100 x 25 mm (4" x 1")


Atoma Diamonds are used for sharpening knives on KME knife sharpeners. KME format stones of Atoma are made by Jende Industries.

Atoma Diamond consists of a diamond-bearing nickel plate mounted on the high-quality aluminum blank. In contrast to regular coated diamonds, all diamond particles in Atoma are gathered into cluster pattern. This approach gives Atoma diamonds higher sharpening performance in comparison with any other diamonds.