This is the patented attachment for a power drill that allows driving or drilling in awkward spaces such as corners, under a sink, between joists, or behind an appliance. Standard right-angle drives only provide a maximum 90° angle, but this one adjusts from 90° -180°, thanks to its two half-spheres that rotate independently, lock into place, and transfers a drill’s torque and speed with a proprietary beveled gearing system. Its keyless chuck accommodates any drill or screw bit up to 3/8". 10" L x 5 1/2" W x 3" D. (1 3/4 lbs.)