1 x ITL Insulated 1/2in Drive Socket (6 Point) 13mm. The ITL Insulated 1/2in Drive Socket (6 Point) are made from injection moulded nylon 11, which exceeds the requirements of IEC 60900, the industry standard for live line working. In addition, they meet the requirements of Category 'C', which requires it to perform at extreme temperatures of -40°C to ;70°C, making it unique in this category. 13mm