Wright Socket, Deep Length Shape III, Impact Rated, Metric, Square Drive, 1/2 in Drive, 36 mm Socket, 88.9 mm OAL, 64.43 mm Opening Depth, 38.88 mm Drive End Width, 52.37 mm Socket End Width, 6 Points, Alloy Steel, Black Oxide. Wright’s Wide Range of Ratchets Meet Your Every Need: Double-Pawl Ratchets in 3/8 in and 1/2 in Drives Provide Ruggedness, Extra Strength, Durability and Fine Tooth Action. We Also Have The Handles and Attachments You’re Looking For- From Extensions and Spinners to Universals, Flex Handles and The Exclusive Twin Flex.