MAXPOWER 24 inch 1/2'' Drive Breaker Bar with Socket Set, 600mm Breaker Bar with 125mm Extension Bar and 17mm, 19mm, 21mm SocketBreaker Bar with Sockets & Extension: Breaker Bar (Overall Length: 600mm 24 inches. Square Drive Size: 1 2 inch). The overall Length of the 1 2" Extension is 125mm. Size of Additional Sockets for the Wrench: 17 mm, 19 mm and 21 mm Pivotable Joint Design: The joint part can be swiveled 270 and thus supports use in areas that are difficult to access. This can also be enhanced by using the extension (125 mm). 1 2 Inch Drive Design: 1 2 inch drive head