Nothing sharpens quite like Japanese waterstones. A diamond bench stone works fine to do the heavy work, but then switch to the 1200 grit waterstone to create a fine edge. Finish with the 6000 grit which hones the edge to a mirror polish for the sharpest and longest lasting edge possible. These bench stones measure 8" x 2 5/8" making them easy to use even on large blades and axes. Sold as a set (1200 and 6000 grit). Made in Japan.