The 4.0MM X 12 SS HS XL DRILL from Field Tool Supply is a precision-engineered drill bit perfect for drilling in stainless steel and other tough materials. With a diameter of 4.0mm and a length of 12mm, it is designed for applications that require accuracy and durability. Constructed from high-speed steel, this drill bit offers excellent performance and heat resistance. The extra-long design allows for deeper drilling, making it suitable for both industrial and DIY projects. It is compatible with standard drill chucks, ensuring versatility in various metalworking tasks.