The Wiha SoftFinish electric slimFix Slotted Screwdrivers come with a high quality Chrome vanadium steel blade, through hardened with a black-finish. Insulation is moulded directly onto the blade. Individually tested at 10,000 V AC and approved for 1,000 V AC.Patented SoftFinish handle ensures work is kind to hands and muscles. Recommended by doctors and therapists at the German Campaign for Healthier Backs. SlimFix handles have been specially developed for electric applications, blades are up to 33% slimmer. The unique Wiha handle-length concept provides optimum balance of torque and control. Manufactured according to IEC 60900.