Bosch BL2747 5/16″ Black Oxide Sp 12″ Long (Carded)

This extra length drill bit from Bosch is engineered for exceptional performance across a variety of materials, including metals like steel and aluminum, as well as wood types such as oak and maple. Its innovative speed helix design allows for three times faster drilling than standard bits, making it ideal for demanding tasks. The black oxide coating enhances durability, providing extended life that outlasts typical high-speed steel drill bits by 50%. With a length of 12 inches and a 5/16-inch diameter, this bit is not only versatile but also reduces heat buildup during use, resulting in easier drilling and a longer lifespan.