For pricechoose optionsSelect Option 1.1/16in 1.1/4in 1.1/8in 1/2in 11/16in 13/16in 15/16in 1in 3/4in 3/8in 5/8in 7/8in 9/16in Quantity Add to Basket A professional bi-hexagon, AF socket produced in accordance with ISO 9000 and AS5954 specifications for increased torque and reduced risk of rounding fasteners.Manufactured from chrome vanadium steel with a satin finish.1/2in Square Drive.