Cobalt HSS Drill Bits 5% Cobalt for Steel, Aluminum, Hard Metal Drilling

Cobalt HSS Drill Bits 5% Cobalt for Steel, Aluminum, Hard Metal Drilling. Exceptional Wear Resistance: Hardness of 64-67 HRC resists abrasive wear 3 times longer than standard HSS drills. High Toughness & Impact Resistance: Balances hardness with excellent impact resistance to withstand high torque and sudden stress. Wide Application Range: Suitable for stainless steel, cast iron, copper, aluminum, engineering plastics, and hardwoods. Customizable Coatings: Various coatings including TiN, TiAlN, TiC, and Uncoated options are available. Fast Delivery Time: Samples delivered in 3-7 workdays; bulk orders in 7-30 workdays depending on quantity.