What are the SAE sizes of spark plug SOCKETS?? I have a 13/16" (I think) one and there is a smaller sized socket that is also used, but I don't know what size it is. I wanna complete my tool set and get that other sized socket, but I wanna get the right tool. There are only 2 sizes that are really used and I need the SMALLER one. Help a stunnah out!! :D
