Satin finish provides corrosion resistance and a slip-resistant grip. 12-point box end allows for fine indexing, helping to improve speed and access. Fits 4, 6 and 12 point fasteners. Anti-Slip Design (ASD) open end. Fractional sizes 11/32" and smaller and 1-15/16" and larger do not have the ASD feature. Box ends incorporate the TorquePlus™ system.