CARDONE High Pressure Oil Rail Repair Tool, also known as a Ball Tube Removal Tool, allows technicians and vehicle owners to service high pressure oil rails with ease. Each unit is treated with black oxide to promote strength, providing a quality product that you can rely on. Designed to mate with any ½” drive socket wrench, the Ball Tube Removal Tool is intended to reduce installation time and frustration, allowing you to spend more time on the road.