Bosch 29-Piece Black Oxide Drill Bit Set w/ Metal Index

Model BL0029

Bosch black oxide bits offer superior durability, speed and selection for most general purpose applications
Best for cutting holes into metal, but works equally well in wood and plastic drilling
Use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon, and composite materials
The speed helix design penetrates 3X faster than standard bits
The benefits include easier drilling, reduced heat, extended drill bit life, and extended cordless battery life
Triple tempered black oxide coated bits last 50% longer than regular high speed steel and offer reduced friction between bit and workpiece
135° split point starts on contact with no walking or skating and no center punch is required