The Brand New Autocraft AC313 is a 3/8in. drive, extension. It is a high-quality automotive hand tool designed to extend the reach of your wrench or socket for those hard-to-reach areas in your vehicle. With a length of 5 inches, this extension makes it easier to access nuts and bolts without the need for additional tools. This unit is manufactured in Taiwan by Autocraft, known for producing reliable and durable automotive tools. Perfect for mechanics and car enthusiasts looking to enhance their tool collection, this extension is a valuable addition for any garage or workshop.