Keep your Akiles Diamond 5 corner rounding machine at peak performance by replacing worn out dies, or add versatility by purchasing a variety of die sizes. They can round the sharp corners of paper, plastic, laminate, leather and more in stacks up to as thick as almost 2". These blades are extremely durable, but like all knives, will wear over time. You can buy Diamond 5 dies and accessories online in 1/8", 1/4" or 3/8" radius sizes to keep your corners perfectly rounded. Using a dull blade can add extra strain to your machine, damaging your valuable investment. Replacing this wearable part, however, will help keep the corner rounding machine like-new for years to come.