• 19mm diameter cobalt alloy drill bit for hard metals • Made with 5% to 8% cobalt for increased heat resistance and wear resistance • Suitable for drilling stainless steel, cast iron, and hardened alloys • High-speed steel (HSS) provides good hardness and toughness • Designed for use in drill presses and handheld drills • Cobalt drill bits maintain hardness at high temperatures • Ideal for industrial, construction, and automotive applications