Elevate your drilling experience with the Milwaukee 48-89-2726 THUNDERBOLT Black Oxide Drill Bit, designed for precision and durability. This 5/16 inch drill bit features a 135 split point that effortlessly penetrates materials, ensuring clean, accurate holes for your woodworking and metal projects. The black oxide coating not only adds to the bit's toughness but also provides a sleek, professional finish. Crafted from high-quality steel, the drill bit is built to withstand rigorous use, making it an essential addition to any toolbox. At 4-1/2 inches in length, it's perfectly balanced for a variety of drills, ensuring a snug fit and optimal performance. Whether you're drilling into wood, metal, or plastic, this single drill bit is up to the task, delivering reliable results every time.