[Features]● The swing type extension bar is used to extend the socket when the handle is difficult to operate, such as when working in deep and narrow spaces. ●The convex drive is specially processed and can be used even when tilted 10°. ●The socket is extended when the handle is difficult to operate, such as when working in deep and narrow spaces. ●It can be used even if the convex drive is spherically processed and tilted 10 degrees.