The product features a 90-degree bend and left and right rotation. You can use it to manually tighten screwdriver bits or install it in the electric drill to save labor, ideal for small environments; It can be connected to drills, electric drills or hand wrenches and reaches the inaccessible space to twist screws and nuts; The quick-mount handle is designed for all kinds of electric drills and socket wrenches. The functional head has a locking and magnetic adjustment to prevent the socket from falling off. Can be connected to a standard 1/4'' hex bit; Change the direction of the head to 90 degrees and screw it onto the screws that are often difficult to tighten; Made of high quality steel and plastic, easy to use.