Abrasive belts are formulated, designed, and made for precision sharpening of high-strength steels. The grit symmetry, spacing, and backing flexibility are all designed to produce the optimal convex edge with minimal heating or material takeoff. If youve ever used a belt sander to sharpen, you know hot quickly the steel heats and how much excess material can be removed if you arent careful. Our abrasives are a key component of our success in the sharpening world.In The Box:5 Red P120 Grit Belts for the Ken Onion Edition (Mk.1 & Mk.2), 3/4″ x 12″ Belts