Special Features:

First end has inside diameter of 0.484 inches; second end has 3/8 inch square drive

Properties:

A rigid adapter less than four inches (101.6 mm) long used to connect sockets to handles, power tools, or to other attachments which are not designed for direct mating to each other. See also ratchet attachment, socket wrench; universal joint, socket wrench attachment; extension, socket wrench; and adapter-extension, socket wrench; excludes adapter, socket, crowfoot socket wrench head; socket, wrench, refrigeration valve stem; and holder, screwdriver bit, female square drive.