The #78 Drill Blank High-Speed Steel (HS) from Field Tool Supply is a versatile tool for custom drilling applications. With a diameter of #78, this drill blank is made from high-speed steel, ensuring durability and resistance to wear. It is perfect for creating precise holes in a variety of materials, making it suitable for both industrial and home use. This drill blank adheres to industry standards, providing users with confidence in their drilling tasks and allowing for the creation of custom drill bits or replacement of worn-out ones.