Miracle Blade III Perfection Series 8 Piece Steak Knife Set New Miracle Blade III Perfection Series 8 Piece Steak Knife Set Handles: Ergonomically designed for comfort and control. Blades: Rust-resistant, stainless steel and hardened to a rockwell C-Scale Hardness Grade of 52, they are harder than almost anything you cut which allows each knife to keep its edge sharp and ready to use every time.