Ultra coarseStage 1 of 6 · Kurogane
Kurogane 黒鉄
The revive stage. Brings back chipped, rolled, and neglected edges.
$57.00
Fits every Hatori sharpener
60-day money-back guarantee2-year warrantyFree shipping
What it does
Stage 1 of the Togi Scale. Kurogane is the ultra coarse revive disc, the one you reach for when an edge looks beyond saving: chips, rolls, years of neglect. A few slow passes rebuild the shape of the edge and give every finer stage something to work with.
The coarsest disc Hatori makes. 55 mm disc with rubber grip ring. Fits every Hatori rolling sharpener.
Where it sits on the Togi Scale
1
Kurogane 黒鉄
Ultra coarse2
Arato 荒砥
Coarse3
Nakato 中砥
Medium4
Kasumi 霞
Fine5
Hikari 光
Ultra fine6
Uzumaki 渦巻
Daily hone
The details
DiameterØ55 mm
Height11 mm
FitScrews onto every Hatori sharpener
UseWhen damaged