160 iSS/7 screwdriver set Kraftform Plus Series 100. With reduced blade diameters and smaller handle diametersProduct Description: 160 iSS 7 screwdriver set Kraftform Plus Series 100. With reduced blade diameters and smaller handle diameters Wera Kraftform Plus VDE slim blade & handle screwdriver set. Wera Kraftform Plus VDE screwdrivers undergo a dielectric strength test under a 10,000 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