If you have the Pacesetter dies,you don't have a neck sizing die.It comes with a full length sizing die,bullet seating die,and a factory crimp die.
But,If you have the Deluxe dies,you should have a full length sizing die,a neck sizing die,and the bullet seating die.
I have three Rcbs dies for my 40, the first die rounds out the brass and deprimes. The second one opens the neck to allow the bullet to fit inside the brass case and the third die seats the bullet and crimps the case around the bullet. I'm new to reloading but this how it was explained to me. I havent actually loaded and bullets yet but I hope this works for you.