Bosch CO4144 17/64″ Cobalt Sp Jobber Drill Bit (Bulk)

The 12-piece cobalt drill bit set from Bosch is expertly engineered to tackle tough materials with ease. Each bit features a surface hardened design that allows for penetration into abrasive surfaces, making them ideal for drilling through various metals including high-carbon steel, aluminum, stainless steel, cast iron, and even titanium. With a rigid, thick web design, these drill bits maintain stability during demanding applications, while also being capable of withstanding high-temperature environments, serving effectively in conditions reaching up to 1,100°F.