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Shobu Karasu

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  • First and foremost, this is a crazy beautiful stone.  I've always like the way karasu stones look, with the black spotty pattern.  Its a thicker sized full-size stone. This is a hard stone, which will also result in a slightly slower cutting speed.  While its not slow, its not fast like softer stones are.  The surface offers a very nice resistance or drag when moving across the stone.  The stone leaves an almost mirror finish on the hagane, and the jigane is also a bit more highly polished.  While there is contrast, its not a lot.  Also, being on the harder stone, there can be streaking around curves if not accounted for.  The polish is relatively high overall though.  If you're looking for a perfect kasumi finish, you may want to use finger stones.  But the polish this leaves provides a great base for that, and will get you most of the way there to start.  This is in the 10k+ grit range for sure.

    Natural stones from this region are rich in silica, which acts as a main abrasive. The potential finish can improve with extended sharpening, with results depending on the stone hardness, the pressure you use during sharpening, water, etc.

    This stone should be used like a splash and go stone... add just enough water to lubricate the surface, but not too much.  The goal is to develop mud, so keeping the surface very wet is prohibitive to mud development.

    • Grit Level: Fine
    • Length: 206mm
    • Height: 40mm
    • Width: 76mm
    • Weight: 1476g



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