The Quick-Change Lower Shell Holder Jaws revolutionize case handling during the reloading process, providing a seamless and efficient experience. These spring-loaded jaws securely support the case by contacting the base of the cannelure, ensuring precise and positive extraction. With their self-acting design, the jaws automatically open and close around the cartridge case as the Co-Ax Press handle is activated, releasing the case effortlessly when the handle is raised. Switching between case sizes is incredibly easy and fast with the Quick-Change Jaws. Simply remove the 10-24 x 5/8 inches Button Head Screws (028271-020) to replace the jaws, without the need for disassembly or reassembly of the Shell Holder Jaws. There's no requirement to flip sides, spring-load the jaws or perform tedious adjustments. This innovative design saves time, reduces effort and enhances the overall efficiency of your reloading setup, making it an indispensable tool for reloaders who value precision and convenience.