Cuts Through Tough Metals and Fasteners with Ease: Crafted from durable M35 cobalt steel, these Century left-hand drill bits are engineered to cut through hardened metals, bolts, and studs—offering excellent wear resistance and long-lasting performance in tough applications. Self-Centering 135° Quick-Cut Points for Accurate Starts: Designed with Century’s 135° quick-cut points, these bits start precisely without the need for a center punch—reducing walking and allowing for faster, cleaner drilling with less pressure. Mechanics Length for Strength and Stability: The shorter, mechanics length style offers greater strength and control during precision drilling—ideal for extracting broken fasteners or working in tight spaces where accuracy is critical. Heavy-Duty Web Construction for Breakage Resistance: Reinforced with a thick web design, these bits provide added durability and reduce the risk of breakage when drilling into hardened materials or using in demanding shop or jobsite environments. Essential 5-Piece Set for Left-Hand Drilling: Includes 1/8", 3/16", 1/4", 5/16", and 3/8" left-hand drill bits—perfect for reverse drilling, broken screw removal, and other specialized tasks where standard bits won’t do the job., Manufacturer: Century Drill & Tool