Carr Lane Drill Bushing Carr Lane's drill bushings are available in various types and materials, including: Press-fit drill bushings, which are installed into a precision-machined hole and held in place by their interference fit. Headless drill bushings, which are installed from the underside of a fixture or plate, and are held in place by a locking screw or other means. Renewable drill bushings, which are designed to be replaced when they become worn or damaged, rather than replacing the entire fixture or plate. Liner drill bushings, which are used to reduce the size of a larger drill bushing or to provide a more precise fit for a smaller drill bit. Carr Lane also offers a range of related components, such as drill jig bushings and drill bushing nuts, which are used in conjunction with drill bushings to provide accurate and repeatable drilling operations.