1 x ITL Insulated Groove Joint Pliers 420mm (16in). The ITL Insulated Groove Joint Pliers made with injection moulded nylon 11 handles, which exceed the requirements of IEC 60900, the industry standard for live line working. In addition, this tool meets 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. 420mm (16in)