Sealey 7 piece universal joint socket adaptor set 1 4 3 8 1 2 sq drive sealey premier ak2737 manufactured from hardened and tempered chrome vanadium steel with a fully polished finish comprising of four socket adaptors and three universal joints each with a spring ball socket retainer supplied in a tough composite case sealey ak2737 universal joint socket adaptor set 7pc 1 4 3 8 1 2 sq drive