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