fully insulated up to 1000 V AC 1500 V DC according to IECEN 60900, for slotted screws, VDE tested, safe working up to 1000 V AC or 1500 V DC voltage, precise, precisely dimensioned tips, optimal fit in the screws, slim handle, space-saving and ideal for fine tuning, color code for each screw type, quick identification, special alloy based on spring steel, exceptional elasticity with high hardness