Three-layers of monocrystalline diamond ensure these 6" stones will last longer than even your toughest hunting knife. The fast-cutting surface pattern is self-clearing and stays flat so it hones at just the right angle. An innovative continuous diamond Micro Pad is ideal for sharpening small blades and fine-pointed tools. The stone also can be removed from the sturdy non-skid base, and it has a snap-lock lid for storage. These fine and coarse stones sharpen tough steel, carbide and even ceramic blades. The kit includes a coarse and fine sharpening stone.