The Lee Precision App Swage Kit is a spring assisted case extraction with integrated case guide. It removes the military crimp from the primer pocket while swaging the primer pocket of your brass and leaves a nice smooth entry radius for new primer. It is easy to adjust and no shell holder is required. The only adjustment necessary is to change primer size. This kit includes swage push die, swage holder, push rod, small swage punch and large punch, and shell holder adapter. Note: This product is for use in the Lee APP press ONLY.