The Quick-Change Lower Shell Holder Jaws simplify and enhance the reloading process by providing secure, spring-loaded support for cases. These innovative jaws contact the base of the cannelure, delivering reliable extraction with every cycle. Designed to be self-acting, the jaws automatically open and close as the Co-Ax Press handle is activated, gripping the cartridge case during operation and releasing it effortlessly when the handle is raised. Changing case sizes has never been easier. Simply remove the 10-24 x 5/8 inches Button Head Screws (028271-020) to swap the jaws for a different size, eliminating the need for complex adjustments. There's no need to disassemble, flip or spring-load the jaws just replace and continue reloading. This streamlined process reduces downtime and enhances efficiency, making the Quick-Change Lower Shell Holder Jaws an essential accessory for precision and convenience in reloading.