Norton Waterstone, 4000 grit, 1" x 3" x 8" in Blue Plastic Hinged Box
Norton@ 4000 grit Waterstones are unique sharpening stones. Although they are a fine grit, they are designed to cut, not polish. They leave a refined edge that can be brought to a mirror finish quickly on the 8000 grit stone. Use the 4000 grit stone before final polishing, for a more consistent, longer lasting edge.  Norton@ Waterstones were rated the Best Waterstones by Fine Woodworking and Popular Woodworking.  Created by a Norton@ engineeer, who is also a dedicated woodworker and bladesmith, Norton@ Waterstones combine craftsmanship with the latest abrasive technology to produce a truly superior sharpening system.