KME Complete 4-Stone Set (60, 120, 320, 1000 grit) You don't need any lubrication

You don't need any lubrication for these stones but now and then you should consider cleaning them with water and liquid soap

they sent samples to various companies in the knife industry to evaluate as a blade material

diamond or Matrix stones)

Traditionally carried in the sleeve pocket of one’s kimono by both Samurai and peasant alike

And you might have noticed the bottle opener built into the back end

KME Complete 4-Stone Set (60, 120, 320, 1000 grit) You don't need any lubricationThis accessory is to be used with the KME Knife Sharpening Systems. Complete 4 stone set: 1 X Coarse 60 Grit Silicon Carbide Ceramic Stone 1 Coarse 120 Grit Aluminum Oxide Ceramic Stone 1 Medium 320 Grit Aluminum Oxide Ceramic Stone 1 Hard Arkansas Stone (approx. 1000 Grit) Made in USA