Wright Socket, Shape III Standard Length, Impact Rated, Metric, Square Drive, 3/4 in Drive, 38 mm Socket, 57.15 mm OAL, 28.26 mm Opening Depth, 45.72 mm Drive End Width, 58.67 mm Socket End Width, Pin Locking, 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.