Sealey Universal Joint & Socket Adaptor Set 7pc 1/4", 3/8" & AK2737Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished finish. Comprising four socket adaptors and three universal joints each with a spring ball socket retainer. Supplied in storage case. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Contents: Universal Joints; 1 4"Sq Drive, 3 8"Sq Drive, 1 2"Sq Drive, Socket Adaptors; 3 8"(F) 1 4"(M), 1 4"(F) 3 8"(M), 1 2"(F) 3 8"(M), 3 8"(F) 1