The universal hold-down die is an essential tool for use with Mark 7 and other progressive presses that swage primer pockets. It features a robust rod designed to extend inside the case, ensuring the case remains securely in place during the swaging process. This design effectively prevents cases from being torn out of the shell plate, thereby protecting both the shell plate and the brass from damage. The die includes two rods to accommodate a comprehensive range of rifle and pistol cases. Constructed from corrosion-resistant stainless steel, the die body is protected against rust, ensuring it maintains its pristine appearance and functionality for a lifetime of use.