9-piece screwdriver set with individually tested, insulated screwdrivers as per IEC 60900. Individual testing in a water bath at 10,000 volts so as to ensure safe working at the permitted voltage of 1,000 volts. Kraftform Plus handle for pleasant, ergonomic working that makes blisters and calluses a thing of the past. Hard gripping zones for high working speeds whereas soft zones ensure high torque transfer. Partially Lasertip: the tip literally bites itself into the screw head and prevents any slipping. Take it easy Tool Finder: colour coding according to profile and size. The anti-roll feature prevents any bothersome rolling away at the workplace.