Unclenick is correct !
All Dillon dies use the carbide expander in them, but I had one that was off center. Dillon replaced it with a smile
I still use light lanolin lube when sizing with carbide is not necessary but a lot nicer.
On bolt guns, I pull the firing pin assembly out and keep resizing brass until I get one that just starts to drag when closing. That is how I set individual die to a rifle.
Some time I use a surface grinder and make a washer for the die if its for more than one rifle.