Custom-Grade rifle dies begin as specially selected steel that's hand-inspected both before and after it's delivered. The steel is then heat-treated to ensure the durability needed to provide a lifetime of reloading. Then the inside surface of each sizing die is carefully hand-polished to a mirror finish. The result is a die so smooth, guaranteed to never scratch a case. Before assembly, every part of every die is hand-inspected and a protective coating is applied to prevent moisture damage during shipping. The result is the most advanced reloading die set available today.