The wera kraftform plus vde 2go 100 screwdriver set includes 11 vde insulated kraftform plus screwdrivers and the wera 2go 4 tool quiver the 100 series screwdrivers undergo dielectric strength test under a 10000 volt load in a water bath to reassure users that their screwdrivers have been exhaustively tested for their most important feature their insulation each individual wera vde screwdriver is subjected to this test to guarantee safe working up to 1000 volts the kraftform plus handles provid