1Carbon Steel Material: Made of premium carbon steel material, this drill bit is very solid, impact resistant and wear resistant. Not easy to break due to vibration. 2Ti Coating: Ti coating of this drill reduces friction and heat through heat treatment, making the cutting easier and more efficient. 3Easy Using: Just install the drill bit into the electric drill. And this drill is suitable for most magnetic drills, very practical! 4Powerful Cutting: This drill bit can split hard oak, hickory, walnut, American wutong, etc. You can also use it to cut other woods. 53 Shank: There are 3 shanks in the package that you can use them respectively according to your actual needs, rest assured to use them!