A friend bought dies assuming that they were carbide, so didn't use lube. That .44 mag steel sizing die was scratched and worn out in one year. Most seating dies have a crimper built in(a shoulder inside die, look carefully into clean die to see it). This crimp is normally roll for revolver, taper for rimless cartridge. Usually only progressive die sets have a separate crimper die(and it may do a slightly better job). The proper small priming arm will do a good job(gets faster if you can mount an auto primer feed).