Stanley Proto J1207MH-T500 Full Polish Combination Wrench, 7mm, 6 Point Full polish finish provides corrosion resistance and easy to clean surfaces 6 point box end allows for large wrench to fastener contact area which helps prevent rounding of the fastener Anti-Slip Design (ASD) open end. Metric sizes 9mm and smaller do not have the ASD feature Box ends incorporate the Torque Plus system