Bosch BL4147 5/16″ Black Oxide Sp Jobber (Bulk)

Experience enhanced drilling efficiency with Bosch’s set of six fractional jobber drill bits, expertly crafted from black oxide for increased durability and extended lifespan. These 5/16-inch bits are designed for a variety of materials, including steel, aluminum, brass, and even wood types like oak and maple, making them incredibly versatile for both professional and DIY projects. Featuring a speed helix design, these bits provide three times faster drilling compared to standard options, while their specialized coating helps manage heat, ensuring they last up to 50% longer than typical high-speed steel bits. Whether you require jobber length or stubby options, this set is ideal for all your drilling tasks, allowing you to tackle any project with confidence.