Stones are the best way to grind, sharpen and polish the cutting edge. This method is also used by Japanese knife factories.The King Deluxe K-45B 1000 sharpening stone is a flat, rectangular stone with dimensions 176x52x15 mm and a gradation (number of grains, abrasive particles per cm2) of 1000, which is the basic gradation for sharpening knives. After sharpening on stone 1000, the cutting edge regains its proper working sharpness. The stone was placed on a plastic base equipped with rubber, non-slip feet. The pure material used to produce these stones is aluminum trioxide Al2O3 (corundum).King is a brand belonging to the company MATSUNAGA STONE CO., LTD, founded in 1948. which specializes in the production of various types of abrasive materials, including stones for sharpening knives. The high quality of the offered products has made King stones recognizable and highly valued all over the world