- D/A29J-CO-PC 29 Piece M42 Cobalt Drill Bit Set in Round Case 1/16 1/2
Cobalt Drills are effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titanium. Cobalt steel provides extended tool life compared to high-speed steel drill bits, and maintains the tool’s toughness and hardness in high drilling temperatures.