Wera kraftform vde kompakt interchangeable screwdriver set comprises of a vde handle with blade auto lock system and vde blades individually tested under a 10000v load to guarantee safe working at 1000v drop tested at extreme temperatures to ensure insulation wont fail in tough jobsite conditions the screwdriver tip is made from powerbit grade steel for unbeatable strength supplied in a rugged belt pouch contains 1 x 817 vde kraftform blade holding handle 4 x 154mm slotted blades 25 35 4 55mm2 x