Bosch BL4146 19/64″ Black Oxide Sp Jobber (Bulk)

Engineered for superior drilling performance, this set of six 19/64 inch by 4-3/8 inch black oxide drill bits from Bosch represents a perfect blend of durability and efficiency. The innovative speed helix design allows for drilling up to three times faster than standard bits, significantly enhancing productivity while simultaneously reducing heat buildup to extend the life of each bit. Compatible with a wide range of materials including steel, copper, aluminum, and several types of wood like oak and maple, these bits are a versatile addition to any toolkit. With a robust black oxide surface coating, they not only resist wear but also maintain sharpness over a longer lifespan compared to high-speed steel options. Ideal for both professional and DIY projects, these jobber length drill bits ensure reliable performance and precision in every application.