The Bosch BL2743 Black Oxide Bit offers 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. The extra length of this aircraft bit gives deeper hole capability.
Best Price: 7.99 USD at Tool King