The 5/16 X 12 SS HS XL Drill from Field Tool Supply is a high-speed steel drill bit designed for precision drilling in stainless steel and other hard materials. With a length of 12 inches and a diameter of 5/16 inch, this drill bit is perfect for deep hole applications, providing excellent reach and accuracy. Made in the USA, it features a robust construction that ensures durability and performance. The HSS material offers superior heat resistance, making it ideal for high-speed drilling tasks. This drill bit is compatible with standard drill chucks and meets industry standards for quality.