Andis 63165 UltraEdge Clipper Blade in size 2-3/4, 5/16 Inch cut length is a premium blade that undergoes a hardening process to form carbonized steel. It prolongs the blade's life, making it dependable and durable. This detachable blade clipper leaves the hair 5/16" or 7.9mm. With a chrome finish, this blade resists any signs of rusting, keeping the blade sharp to give you a well-rounded groomed look.