Be confident in your purchase, we are a certified MADI Dealer. How cool is that?? Features Benefits: Impact Rated Three square opening in one socket ? (oversize) fits oe? hardware 1? fits 5/8? hardware 1-1/8? fits ? hardware Easy to use with rubber gloves with a Secure Lock Quick-Change Adapter that Prevents Unwanted Socket Disconnect Adapter also sold separately under the SS-3AD Multi-Use Wing Nut and Eye Bolt Type Clamp Applications: Grounding Clamps Hot Line Clamps T-Clamps Underground Feed Through Bushings Layout Arm Hardware Stringing Block Temporary Arm Insulators 5/8? and ? Eye Nuts Large Hardheads or Lags Large J Hooks Non-standard Eye Nuts on the Composite Arms Remove and Install Pole Steps