OTC 6900 Ford F-150 Spark Plug SocketSocket end is 9/16".Socket has 3/8" drive for use with a ratchet or breaker bar.This unique and patented design works on 2004-newer Ford F-150 pickup trucks with 5.4L 3-valve Triton V-8 engines. Soft rubber insert holds and protects spark plug during removal and installation. Extension is part of the socket. Easily fits down spark plug tube in cylinder head.
OTC - SPX