About BoxWrench

U-Joint Socket

U-Joint or Ball and Point Socket

Craftsman Universal Joint SocketSocket accessory that allows the extension to pivot.

How to use a U-Joint Socket:

Universal Joint Socket with an ExtensionThese socket accessories are very useful for getting your sockets to "turn corners" or to get a socket onto an inaccessible bolt head. We find it a lot easier to add a socket extension so that it's not so stubby to use.
Tools and