1. - 3000
Bavarian Frankonian Stone, Thai Binsui from Aranjik
2. 3000 à 5000
Coticule thick slurry, Llyn Idwall thick slurry
Washita
3. 5000 à 8000
Khao Men, Coticules
4. 8000 à 10 000
Coticules
5. + de 10 000.
Pierre Thuringe, Ordovician Thuringian, La Lune, Special Stone for Good Razors,
Nakayama Kiita, Ozuku, Ozuku Mizu Asagi
Coticule:Les Latneuses
Barber Hone: Fernsler, Frictionite fine side