Interchangeable blade screwdriver set with 817 Kraftform VDE blade holding screwdriver handle. Kraftform Kompakt VDE components undergo a dielectric strength test unde to reassure users that their screwdrivers have been exhaustively tested for their most important feature: insulation. Handle features Kraftform ergonomics with hard-gripping zones for high working speeds and soft zones ensuring comfort during intensive use and high torque transfer. For Kraftform Kompakt VDE blades the handle/interchangeable blade system allows a rapid exchange of the blade and multiple applications. Supplied in a robust but lightweight pouch. Chrome Molybdenum Steel Blades Ergonomic Handle Tested to 10,000V, Rated to 1000V AC Chrome Molybdenum Steel Blades Ergonomic Handle Tested to 10,000V, Rated to 1000V AC