Socket 3/8" X 1/2" Drive, 12 Point Standard Length, 1000V Insulated, Gray Tools, Mfr#: 1406-I

Hex Size: 3/8". Features an orange top insulation layer, and a second yellow layer that also serves as a visual safety indicator. Provides user protection for up to 1000 V. Individually insulated and tested to ASTM F1505 standards.