The product is a set of 75 HeliCoil 5/8 diameter and 3/4 length inserts. These inserts are used for threading and are specifically designed for automotive purposes. The Helicoil brand is known for its quality and durability, making it a reliable choice for hand tools in the automotive industry. These inserts are made in the United States, ensuring a high level of craftsmanship and precision. Perfect for professionals and hobbyists alike, this set provides the necessary tools for precision threading tasks.