OBD2373 Features: * Removes even worn fasteners * ""Lobular"" design exerts force on flats of fasteners * Heat-treated to ensure correct hardness and spring * Prevents rounding of fasteners" corners * No. of Points: 12 * Opening Type: Box/Box * Material: Forged Alloy Steel * Measuring System: Inch * Type: Box End Wrench * Testing and approvals: * Meets ANSI Spec. B107.6 * Meets Federal Spec. GGG-W-636e Color/Finish: * Finish: Chrome