Includes 3 Grits: Coarse 325 grit (45 micron) for quick edge setting; Fine 600 grit (25 micron) for a sharp edge; Extra fine 1200 grit (12 micron) for honing
Patent pending ring grip holding to protect hands from hurting when sharpen
Mirror polished finish on rear side for emergency signaling
Ideal for sharpening knives, small edged and pointed tools including carbide and high speed steel tools