This Brake Bleeder and Vacuum Pump Kit is a mutli use testing tool for fuel, transmission, ignition and emissions systems. Manufactured from high quality materisl it features a steel handle with rubberised coating for increased comfort and one handed pump action. The set is ideal for removal of air in brake fluid lines by removing the air filled fluid under a vacuum. It is suitable for all vehicle types. The replaceable O-ring cylinder gasket, rubber piston ring and valves ensure there is always an air tight fit. The easy read dial displays positive 0-760mmHg/0-30inHg, easy read dial and also up to negative 635mm Hg.