The Craftsman 1/2 Drive 3″ Impact Extension CMMT 19498 is a high-quality hand tool designed for automotive use. This extension, with a 1/2″ drive size, is part of Craftsman’s specialty socket set and features a black oxide surface finish for durability. The impact socket type is suitable for SAE measurements, and it comes with a lifetime warranty, ensuring long-lasting performance. Perfect for mechanics and DIY enthusiasts, this single item extension from Craftsman is a reliable addition to any toolbox.