Attributes . Specifically Assembled with the Correct Heat Shrink Loop, Helping to Improve Speed and Access. Fits 4, 6 and 12 Point Fasteners, Anti-Slip Design (ASD) Open End, Metric Sizes 9mm and Smaller and Sizes 36mm and Larger Do Not Have the ASD Feature , Box Ends Incorporate the TorquePlus(TM) system . Names