HSS-M42 (8% Cobalt) Drills are ultra-high-performance drilling tools manufactured from premium High Speed Steel alloyed with 8% cobalt for exceptional hardness, hot hardness, and wear resistance. Designed for the most demanding machining applications, these drills maintain their cutting edge even at elevated temperatures, ensuring superior tool life, high productivity, and outstanding hole accuracy. They are ideal for drilling stainless steels, hardened steels, titanium alloys, nickel-based alloys, cast iron, and other high-strength materials.