This product is a vintage Century drill bit set that includes 28 high-speed metal bits. These steel drill bits are suitable for use with air drills and are designed for mixing applications. The bundle listing indicates that all the necessary items are included in the set. Perfect for a machinist or anyone working on metal projects, this drill bit set has a timeless quality that would make a great addition to any workshop or tools collection. preowned. They were my dad’s. He kept them in good condition. They do seem complete. See pictures.