Hot stick
A Hot stick is a tool used by Utility Workers (known as Linemen or Linesmen) dealing with high voltage electricity.  It is an insulated pole made usually from Fiberglass, measuring anywhere from 5ft-10ft, up to about 40ft in length.  It can have different tools attached to the end of it, making it possible to do everything from tightening bolts and nuts, through to testing voltage or removing and replacing fuses.