Felo E-Smart interchangeable VDE slim screwdriver handle is compatible with the E-Smart interchangeable blades which are available in both “Slimline” reduced insulation and “Standard” versions. The ergonomic handle is 30% slimmer vs conventional screwdriver handles and has a 2-component soft grip for all day comfort and features a locking mechanism to ensure the blades wont slip. Individually tested and certified to IEC60900 standards.