Chef's Choice Pronto Diamond Hone Asian Knife Sharpener 463The model 463 is the fastest manual sharpener for Asian knives, using a 2 Stage sharpening system for effortless cutting. Convert the 20 factory edge of your Euro American knives into the high performance 15 edge of Asian cutlery. Criss Cross technology uses 100% Diamond abrasives to sharpen in Stage 1 while Stage 2 hones the edge, using micron sized diamonds to create the double bevel blade. Incredibly quick and easy to use don't bother with your