VDE 1000V certified Quick-change tips Made of high-quality S2 alloy steel Durable, resistant to deformation and damage Hardened and sandblasted screwdriver tips Insulated and magnetic screwdriver bit - for better accuracy and comfort Two-component handle with non-slip surface for better screwing power and safety Electrical tester included for 100-500V AC voltage. Flat screwdrivers: 1.2 x 6.5 x 100 mm, 1.0 x 5.5 x 100 mm, 0.8 x 4.0 x 100 mm, 0.5 x 3.0 x 100 mm Phillips screwdrivers: PH2x 100mm, PH1x 80mm , PZ2x 100mm, PZ1x 80mm Torx screwdrivers: T10x 100mm, T15x 100mm, T20x 100 Tension tester 140mm