Arkansas penkkikivi, musta 150 x 48 x 20 mm

Arkansas OilstonesFine grained, extremely wear-resistant honing stones, for use with an oil lubricant. Due to their high degree of hardness and stable bond, particularly well-suited for polishing curved cutting edges. The stones we offer have a uniform structure and are crack-free. The black stones are somewhat harder than the white ones. They originate from quarries in the Ouachita Mountains in Arkansas (USA) that unfortunately are almost depleted. 150 x 48 x 20 mm, grit ~ 6000-8000, sizes may vary.