Wera Kraftform Plus Set of 7 screwdrivers, which are each individually tested for dielectric strength under a load of 10,000 volts to ensure safe working with load up to 1,000 volts. The premium Lasertips bite into the screw head, reducing cam out.4 x Slotted: 2.5mm, 3.5mm, 4.0mm, 5.5mm.2 x Pozi: PZ1, PZ2.1 x Phillips: PH2.