I’m pretty sure most, if not all, of mine had not previously been removed. I got all but two of the 179 out intact and reused all but 4 or 5. After making the mistake of trying to drill one out (it was harder than the drill bit) I began using a little heat from a simple Bernz-O-Matic torch. I did, however, go through 2 driver bits and found out it really helps to have a sharp flat end on the bit. It also helps to use a sharp pointy object to remove the 17 layers of paint from the clutch head hole (right after you heat it).
