Socket wrench accessories from Grainger can make the difference in getting your job done right. A wrench adapter allows you to utilize sockets of different drive sizes, and attaching a socket wrench extension can make it easier to tighten nuts and bolts in hard-to-reach spots. Flex handles are socket wrenches that have pivoting drive heads, helping the handle to avoid obstructions when working in cramped spaces. A universal joint is two articulated socket joints combined at a right angle. U-joints allow a bend in the turning axis of the ratchet wrench and can be used with extensions in areas that are difficult to access.