Speed Systems 1000V Isolated 5/16" Hex Shaft With 3/8" Drive - 4.5" Length ISE-4

The ISE-4 is an Isolated Shaft Extension Tool designed for use with a socket wrench or torque wrench where total isolation is required between the socket and extension. The ISE-4 is rated 1000V and 600 in-lbs of torque.
Features:

5/16" hex shaft
3/8" drive input
4-1/2" overall length
Rated 1000V, 600 inch-lbs.
Thick-walled filament wound fiberglass shafts
Total end-to-end separation gives electrical isolation