FPI Insulated wrenches protect employees & equipment from shock and overflash. Insulated box end wrench sets allow telephone & electric utility personnel to work around energized bus bars or back-up batteries safely.
Standard 8 piece kits have the following sizes:
8 PIECE: 3/8",7/16",1/2",9/16",5/8",11/16",3/4", and 13/16" with canvas pouch.