Armeg SDS VDE Handle and Blade Set where VDE screwdriver handles and T-handles are designed to work with all Armeg SDS’s VDE interchangeable switch-blades to allow the ultimate flexibility when working on a variety of live installation applications. Blade auto-lock and retention design means blades simply click into the VDE screwdriver and T-handle, held securely for safe working. Quick-release mechanisms allow blades to be conveniently and quickly removed from the handles for rapid blade changes. Ergonomic shape of the VDE T-handle provides more powerful leverage for high torque loosening and tightening of screws.