Premium Cobalt Construction for Durability: Built from high-quality cobalt steel, these left-hand drill bits are designed to withstand heavy-duty drilling tasks, offering long-lasting durability and reliable performance for demanding projects Efficient Left-Hand Drill Design: Engineered with a unique reverse cutting direction, these left-hand drill bits are perfect for removing broken bolts, screws, and fasteners, reducing the risk of surface damage while ensuring efficient extraction Split Point Tip for Precision Drilling: The split point tip design ensures precise and clean drilling by preventing the drill bit from wandering or slipping off center, making it ideal for tasks requiring high accuracy Ideal for Heavy-Duty Drilling Tasks: Whether you're working with tough metals or hard materials, these cobalt drill bits provide superior performance and durability, making them a top choice for professional and DIY projects alike Versatile and Reliable Drill Bits: Perfect for various applications, these left-hand drill bits offer enhanced control and precision, making it a must-have tool for mechanics, metalworkers, and home improvement enthusiasts, Weight: 0.99 pounds, Manufacturer: Century Drill & Tool