Expert Quality, socket adaptors forged from chrome molybdenum steel hardened, tempered with black phosphate finish. Packed in blow mould case. Contents: 1 x 3/8" (F) x 1/4" (M) 1 x 1/4" (F) x 3/8" (M) 1 x 3/8" (F) x 1/2" (M) 1 x 1/2" (F...