Natural Ocean Blue Sharpening Honing Pocket Stone Waterstone Grit 12000 Ultra Fine for Hunters Fishermen Tourists
- 4.0"x1.6"x0.6" (100x40x15mm), 6oz (180g) +/-5%.
- Natural "Ocean Blue" Tsushima sharpening honing pocket waterstone whetstone.
- Used for honing and sharpening knives, chisels, gouges, razors, blades, planes.
- Quarried from a now closed underwater mine near South Tsushima Island, Japan.