• 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 degree split point starts on contact with no walking or skating and no center punch is required

• 29-Piece Black Oxide Drill Bit Set w/ Metal Index - BL0029

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