Ron, I don't really know all about freeze plugs. Driving one in with a socket is a very good practice. I was taught to "set" smaller ones with one or two centered strikes and used a rounded punch. With the larger ones I use a ball-peen hammer and use the peening end again with a couple of strikes. I was cautioned to not over-do the striking as it could damage the seat that the disc seals. Never had a problem with one if the hole was in good shape and usually let the "shop" doing the dipping and inspecting install them for me.
Dave Neptune
