I'm going to refinish the stock on an older 110D, 30-06. I need to remove the recoil pad/butt plate. It has two small holes in the end where a tool can be inserted, but I can't see what type of screws are holding it on. I don't want to damage them. Does anyone know what tool I need to remove the screws? (flathead, phillips, alan wrench, etc.) Thanks.