NOVORIK 115Pcs Drill Bit Set , Cobalt Twist Drill 1/16"- #60, M35 High Speed Steel,135 Degree Split Point, for Stainless Steel, Hardened Metal, Cast Iron, Plastic and Wood

High Toughness Material: Our drill bit is made of High Speed Steel M35, a molybdenum mix containing 5% cobalt which improves its toughness and hardness, making it highly suitable for drilling stainless steel. It can also drill sheet metal, hardened metal, cast iron, plastic and wood. High Toughness Material: Our drill bit is made of High Speed Steel M35, a molybdenum mix containing 5% cobalt which improves its toughness and hardness, making it highly suitable for drilling stainless steel. It can also drill sheet metal, hardened metal, cast iron, plastic and wood. High Toughness Material: Our drill bit is made of High Speed Steel M35, a molybdenum mix containing 5% cobalt which improves its toughness and hardness, making it highly suitable for drilling stainless steel. It can also drill sheet metal, hardened metal, cast iron, plastic and wood. High Toughness Material: Our drill bit is made of High Speed Steel M35, a molybdenum mix containing 5% cobalt which improves its toughness and hardness, making it highly suitable for drilling stainless steel. It can also drill sheet metal, hardened metal, cast iron, plastic and wood.