material: premium chrome vanadium steel head: trivalent chrome plated according to ISO 1456:2009 made according to standard ISO 10104 and EN IEC 60900:2018 Advantages: double layered - double coloured insulation for additional safety controlled according to standard EN IEC 60900 Important! if second layer is visible, replace your insulated tool with a new one. Ultimate protection Unior insulated VDE tools ensure ultimate protection even when used around live circuits with up to a 1000-volt potential. The utility of all tools is thoroughly verified by means of the impact strength, electrical, flame-retardancy, insulation adhesion and stamp tests, with each tool being tested individually. High-quality steel Insulated wrenches, pliers, shears, screwdrivers and other tools for working with electrical and other power installations are made of high-quality tool steel with added protection, and designed for simple and safe use. VDE regulations VDE insulated and tested according to the VDE r