Draper Ergo Plus Plain Slot VDE Interchangeable Screwdriver Blade, 3 x 100mm. MPN 24737. This expert quality spare blade is made from SVCM steel. It is suitable for connecting to all existing Draper Expert 965 interchangeable range screwdrivers. Each blade is individually tested to 10,000V and fully compliant with EN60900:2012 standards. This ensures safe use on AC circuits up to 1000V and DC circuits up to 1500V.