Cobalt Drill Bits

Cobalt drill bits are engineered for tough hole making tasks. They are composed of high-speed steel with a 5% to 8% cobalt blend.  They are known for their durability and heat resistance. They have superior hardness relative to high speed drill bits which makes them ideal for drilling into hard materials like stainless steel, cast iron, and titanium. However They do not perform at the level of carbide drill bits.  Cobalt drill bits are a valuable addition to any tool crib, particularly for professionals and serious DIY enthusiasts who frequently work with challenging metals.