The 6 piece precision VDE screwdriver set from Brüder Mannesmann is safe to use on plugged-in electrical components of up to 1000 V AC and 1500 V DC. These insulated screwdrivers are manufactured from chrome-vanadium steel. The handle is designed with a non-slip composite that is very comfortable to work with. Both the blades and the handle are fully insulated and VDE certified.