Shun 1000/3000 Grit 2-Sided Combination Whetstone Water Stone - Knife Sharpener Keep your Shun blades in pristine condition with this double-sided whetstone sharpener. For precision sharpening, it offers two grits: a medium-fine 1000-grit side and a fine 3000-grit side. Use the 1000-grit side to restore a dulled edge, then refresh the edge with the 3000-grit side. If you like the satisfaction of sharpening your knives yourself on a whetstone, the Shun Combination Whetstone is an excellent choice. Shun's Combination Whetstone offers you two grits: a fine 3000-grit side and an even finer 6000-grit side. Since you won't want to let your Shuns get too dull before sharpening, this stone is a good choice because it lets you put a keen edge on your Shun with the 3000-grit side, then polish it to perfection with the 6000-grit side. The Shun Combination Whetstone is a double-sided waterstone. You will need to thoroughly soak this whetstone before sharpening. The 1000-grit side is perfect for restoring a dulled edge The 3000-grit side is exceptional at refreshing the restored edge Includes a rubber tray to ensure stability when sharpening. Restore Shun blades to their original sharpness