Originally Posted by
Howard
The nagura stone is a piece of chalk. It provides some lubricity to the japanese stones which are harder than the belgian stones and need the nagura to start the slurry. The belgian stones can get a slurry going with a kitchen knife and water. This is NO problem! Lynn's video was made before I started having the belgians make me the coticule slurry stones which people are now using for getting a slurry going on belgian stones. The cotigura - so named to honor the Japanese tradition and to create the "set" of rubbing stones - is pure coticule. At $18 they're a pretty good buy.
Howard