Irwin 3016028 7/16" Cobalt HSS Drill Bit (3 Pack)

Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. Made from industrial grade High-Speed Steel for increased durability. 8% Cobalt alloy is heat and abrasion-resistant. 135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface. Bit has a straight shank.