VIM 13pc Master Spark Plug Socket Set 14mm, 16mm, 9/16", 5/8" & 13/16 #SPM100. Set contains the most common spark plug socket sizes used in Euro, Domestic and Asian vehicles. Swivel Standard Extra Deep and Thin wall Sockets all 3/8 drive. Universal Joint Spark Plug Socket 14mm, 9/16", 5/8" & 13/16. Standard Spark Pug Sockets 14mm, 9/16", 5/8" & 13/16.Thin Wall Spark Plug Sockets 14mm & 16mm. Knurled For Finger Tip Control. EVA Foam Holder For Easy Access.