3/8" drive imperial sockets: 9/16", 5/8" 11/16" 3/8" drive spark plug sockets: 21mm (13/16") 3/8" drive imperial star sockets: 1/4" 5/16", 3/8". Includes 140mm spinner handle, 170mm ratchet handle, 3" extension bar, adaptor (1/4" drive to 3/8" drive) and 3/8" disc.
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