Kai combined grinding stone, JIS grit: 400/1000, removable plastic washer, designed for steel hardness up to 59 HRC.
Combined ceramic grinding stone KAI, grit 400/1000. One side with a grit of 400 suitable for pre-grinding, the other side with a grit of 1000 for finishing. The water tank ensures the wetting of the stone during grinding. Grinding stone AP-0305 is suitable for grinding symmetrical and asymmetrical blades.