The Bridge Foot Fitting Jig is used by clamping the bridge firmly between the plates so that it will assume the desired forward lean when it is set in its correct position on the Cello Top. The wheel should point toward the fingerboard. A piece of sandpaper is placed abrasive side up on the Cello Top. The jig is then rolled back and forth to form the feet to the curvature of the top for a perfect fit