This Craftsman Vintage 3" Extension is a great addition to any toolbox. Made in the USA with a chrome surface finish, it is perfect for automotive repairs and other DIY projects. The extension has a 1/4" drive size and comes with a standard socket type. Included in this single item set is a lifetime warranty, ensuring that it will last for years to come. The manufacturer part number is EE 43539. This extension is a must-have for any Craftsman tool collection and will make your next project a breeze.