CERTIFIED: This 5.5mm x 125mm slotted electrical screwdriver is tested to 1000V and is VDE certified to EN IEC 60900:2018. INSULATED: An insulated sheath runs the length of the bar to protect the user from live current. DURABLE: It has a tough, chrome vanadium shaft with a corrosion-resistant tip for durability. ERGONOMIC: Ergonomically designed, it has an easily identifiable dual-colour handle. VERSATILE: It is ideal for use on household electrical circuits.