MDV731 | Teng 1000V Screwdriver Interchangeable 3mm Flat Flat (slotted) blade 1 000 volt insulated screwdriver blade For use with the interchangeable blade handles (MDV700 or MDV710) Approved for live working up to 1 000 volts Integrated protective insulation with two colours to clearly indicate if there is any damage to the insulation For use with slotted screws TT-MV PLUS steel alloy for greater strength and material flexibility