3/16″ Black Oxide SP 12″ Long (Carded)
Speed helix design for drilling three times faster than standard bits
From the Manufacturer
Bosch black oxide bits offer superior durability, speed and selection for most general purpose applications. Best for cutting holes into metal and work 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.