Shun’s Combination Whetstone offers two different grits. One is a fine 1000 grit side while the other is an even finer 6000 grit. The DM0600 is a Japanese waterstone, it will need to be soaked before sharpening. To put a keen edge on your knife you are going to want to use the 1000 grit side and then use the 6000 grit side to polish your knife to perfection. This model also includes a rubber tray for stability when sharpening. Features: ? Whetstone has 1000-grit waterstone on one side, 6000-grit whetstone on the other. ? Fine, Japanese waterstones; soak before using. ? Includes rubber tray for stability when sharpening. ? Made in Japan.