Needs to be started with nagura. final stone for edge work. leaves a nice edge on your carbon knifes.
Not ideal for kasumi, but can manage with good amount of slurry.
Must be sealed with lacquer.
Detailed Spec
Brand: Tanaka Toishi 田中砥石工業所
Product Type: Natural Stone
Mine: Ohira
Producing Area: Kyoto/ Japan
Hardness (5 = Very Hard) : 5
Grain Scale (5 = Very Fine) : 3.5
Sharpening Speed (5 = Very Fast) : 3
Soaking Requirement: Not required
Size: 205 x 79 x 41mm
Weight: 1655g