577-USN330 Features: -Heavy box walls provide greater torque transmission.-Box opening remains on fastener when wrench is struck.-High strength rectangular design withstands heavy sledging.-Straight handle resists springing for easier nut turning.-For close quarter work where hammer or sledge is required to loosen frozen nuts or set large fasteners.-No. of Points: 12.-Opening Type: Box.-Offset Angle: 45 Box Side.-Handle Type: Off-Set.-Material: Forged Alloy Steel.-Measuring System: Inch.-Type: Striking Wrench.-Price is for 1 Each. Color/Finish: -Finish: Black Oxide.