I have my new clutch center in hand. I’m trying to remove the old clutch center from the back friction pad. The three studs that hold the clutch springs have a nut on them and they are center punched to prevent them from backing off. The nuts are 1/4W in size, very thin, and soft. I drilled the center punch marks ever so slightly with a 1/8” drill and applied head. I’m afraid of rounding the nuts. Any suggestions are greatly appreciated.