Field Tool Supply's 21/64 X 15 1MT HS XL Drill is crafted from high-speed steel (HSS) for superior performance. With a 1MT shank, this drill bit is compatible with a range of machines, making it versatile for various applications. Measuring 15 inches in length, it is designed for deep drilling, ideal for both metal and wood projects. The HSS material provides excellent heat resistance and cutting efficiency, ensuring a smooth drilling experience. This drill meets industry standards, making it a reliable choice for professionals and DIY enthusiasts alike.