Front Drum Question

Hi,
I've been doing research into changing the front drums on my Scamp and i know you can use a swedge tool or quality hole saw to cut the swedge on the drum. This is where i lose track of what happens, maybe I'm over thinking it. After the drum is cut and the hub removed, can I just go and buy new drums and install as is with the same studs since the hub centers the drum? Is the swedge on the studs being cut or is it just the drum?

Thank you