fine, medium and coarse Ceramic Toishi
Everyone from beginners to professional artists use ceramic stones. Ceramic stones come in three grits: shiageto (fine), chudo (medium), and arato (coarse). Use the shiageto stone regularly to keep tools in top condition and the chudo stone occasionally when the tool is quite dull. The arato stone is reserved for grinding out nicks.
When you are using ceramic stones, it is a good idea to use a Nagura Stone. These soft stones are rubbed on the wet ceramic stone, creating a paste that aids in sharpening the blade.
Molded Ceramic Toishi
fine and medium Molded Ceramic Toishi
Molded Ceramic Toishi feature pre-formed grooves for sharpening u-gouges. They also feature ridges that should be used to remove the burr that will form on u- and v-gouges after the bevel side has been sharpened. Do not sharpen the inside face of your tool on these ridges; this will create a second bevel, effectively dulling the tool and it will no longer carve well. The back of the stone can be used as a flat stone for any tool shape so long as the molded side is well supported.