<p>1.VDE and GS certifications guarantee safe working standards of 1000 volts. Each insulated screwdriver tool is tested individually and insulated to 1000 volts AC. </p> <p>2.Insulated screwdriver sets adopt chrome vanadium steel blade, which are stronger and durable. It provides stronger torque and resilience to prevent stripping.</p> <p>3.Black Screwdriver Tip guarantees a long service life, increased corrosion resistance and accurate fit into fastener.</p> <p>4.Ergonomic Design Non-Slip Handle fits the shape to the hand for quick and effortless working and preventing hand injuries.</p> <p>5.Magnetic tip insulated screwdrivers are suitable for electricians, building computers, and working with breakers or electronics, electrical fields. </p> <p><b>Set contains </p></b> <p>4X Slotted Insulated screwdriver - 3.5 x 75mm, 4.0 x 100mm, 5.5 x125mm, 6.5 x 150mm; </p> <p>3X Phillips Insulated screwdriver - PH0 x 75mm, PH1x100mm, PH2 x100mm;</p> <p>1X Voltage Tester(100v-250v testing range) </p>