The #4 X 12 SS HS XL DRILL is a high-speed steel drill bit designed for precision drilling in various materials. With a size of #4 and a length of 12 inches, this drill bit is ideal for deep hole drilling applications. Constructed from stainless steel, it offers excellent corrosion resistance and durability. The high-speed steel construction ensures efficient cutting performance, making it suitable for both professional and DIY projects. This drill bit is a must-have for any machinist or hobbyist looking to achieve clean, accurate holes in their work.