The HSS cobalt twist drill provides long-lasting performance when drilling stainless steel. The extended lifespan is due to the 5% cobalt alloy content and the HSS (high-speed steel) that provide exceptional surface quality, wear resistance, and heat protection. With two cutters and two flutes, chips are easily removed to increase the drill's lifespan. This drill works with alloy and non-alloy steel, stainless steel, cast iron, and acid and heat-resistant steel. 

This drill works with alloy and non-alloy steel, stainless steel, cast iron, and acid and heat-resistant steel. It features a cylindrical shank system (the shank is the same size as the drill) and is intended for use with drill stands and drill drivers.