7/16" Cobalt Steel Taper Length Drill Bit - High Speed DWDTL Series for Metal, Wood & Plastic - Perfect for DIY Projects, Construction & Industrial Use

Drill America DWDTLCO series cobalt taper length drills are made of heat resistant cobalt. Features heavy duty construction for drilling in tough alloy steels, forgings and castings

Designed for drilling where a length longer than jobber length is required

Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys

Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools Round shanks allow use with a wide variety of toolholding systems

When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging

Ideal for drilling in tough, high tensile strength materials