A drill bit that walks on the metal surface before it catches makes an off-center hole that's harder to correct than to prevent. This 5/32-inch cobalt drill bit holds its edge through repeated drilling in stainless, cast iron, and other hard metals — cobalt steel resists the heat buildup that dulls standard HSS bits on metal work. The 5/32-inch size handles the smaller fastener pilot holes you encounter in sheet metal work and equipment repair. Machinists and equipment repair techs across northeast Nebraska and northwest Iowa keep cobalt bits in the index because they don't want to be caught without them on a metal job. In stock at Crofton Lumber (Crofton, NE) and Akron Lumber (Akron, IA) — ready for pickup today. Stocked at Crofton Lumber and Akron Lumber.