The Performance Tool W9011 13pc Left Hand Drill Bit Set is a perfect addition to any metalworking toolkit. With a left-handed design, these drill bits are ideal for extracting broken screws and studs. Made from high-speed M2 steel with a titanium nitride coating, the drill bits are durable and deliver quick drilling results. The 135-degree split point design ensures that you can use this drill bit set for drilling most metals. The set comes with a metal storage case, allowing you to keep your drill bits organized and easily accessible. With sizes ranging from 1/16" to 13/64", this drill bit set provides you with a range of options for tackling any drilling job, making it a versatile and indispensable tool for any DIY enthusiast or professional.